SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE...
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Transcript of SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE...
![Page 1: SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE HIDDEN NODE PROBLEM Carlos Pereira.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf35503460f949c1238/html5/thumbnails/1.jpg)
SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE HIDDEN NODE PROBLEM
Carlos Pereira
![Page 2: SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE HIDDEN NODE PROBLEM Carlos Pereira.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf35503460f949c1238/html5/thumbnails/2.jpg)
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Outline
• Problem Statement• Idea• Evaluation metrics• Results• Conclusions
![Page 3: SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE HIDDEN NODE PROBLEM Carlos Pereira.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf35503460f949c1238/html5/thumbnails/3.jpg)
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Problem Statement
• Hidden Node
• Amount of packet collisions increases for:• Increasing Vehicle density• Increasing Transmitted Power• Increasing of Packet Size • Increasing of Beaconing rate
Increasing of load
Unsynchronized transmissions Packet Collisions
![Page 4: SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE HIDDEN NODE PROBLEM Carlos Pereira.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf35503460f949c1238/html5/thumbnails/4.jpg)
Idea: Recover packets from collisions using SIC
• Objective• Feasibility/Benefit Study
• Requirements• Characterization/Evaluation of packet collision
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![Page 5: SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE HIDDEN NODE PROBLEM Carlos Pereira.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf35503460f949c1238/html5/thumbnails/5.jpg)
Evaluation metrics
• Reception and Drop Probabilities • Probability of being involved in a collision• Number of packets overlapping• Energy distribution of colliding packets• Probability of Recovery through SIC
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![Page 6: SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE HIDDEN NODE PROBLEM Carlos Pereira.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf35503460f949c1238/html5/thumbnails/6.jpg)
Results
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• Packet drop probability• 60 Veh/km; 4 Lanes; TxPower = 20; Packet Size = 500 Bytes; Beacon Rate = 6Hz
![Page 7: SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE HIDDEN NODE PROBLEM Carlos Pereira.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf35503460f949c1238/html5/thumbnails/7.jpg)
Results
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• Packet drop probability• Reasons for Drop in StartRx (60 Veh/km; 4 Lanes; TxPower = 20dB; Packet Size =
500 Bytes; Beacon Rate = 6Hz)
![Page 8: SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE HIDDEN NODE PROBLEM Carlos Pereira.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf35503460f949c1238/html5/thumbnails/8.jpg)
Results
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• Packet drop probability• Reasons for Drop in EndPreamble (60 Veh/km; 4 Lanes; TxPower = 20dB; Packet
Size = 500 Bytes; Beacon Rate =6Hz)
![Page 9: SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE HIDDEN NODE PROBLEM Carlos Pereira.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf35503460f949c1238/html5/thumbnails/9.jpg)
Results
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• Packet drop probability• Reasons for Drop in EndHeader (60 Veh/km; 4 Lanes; TxPower = 20dB; Packet
Size = 500 Bytes; Beacon Rate =6Hz)
![Page 10: SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE HIDDEN NODE PROBLEM Carlos Pereira.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf35503460f949c1238/html5/thumbnails/10.jpg)
Results
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• Packet drop probability• Reasons for Drop in EndRx (60 Veh/km; 4 Lanes; TxPower = 20dB; Packet Size =
500 Bytes; Beacon Rate =6Hz)
![Page 11: SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE HIDDEN NODE PROBLEM Carlos Pereira.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf35503460f949c1238/html5/thumbnails/11.jpg)
Results
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• Packet drop probability• Variation of Beacon rate (60 Veh/km; 4 Lanes; TxPower = 20 dB; Packet Size = 300
Bytes)
![Page 12: SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE HIDDEN NODE PROBLEM Carlos Pereira.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf35503460f949c1238/html5/thumbnails/12.jpg)
Results
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• Packet drop probability• Variation of Beacon rate in StartRx (60 Veh/km; 4 Lanes; TxPower = 20 dB; Packet
Size = 300 Bytes)
![Page 13: SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE HIDDEN NODE PROBLEM Carlos Pereira.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf35503460f949c1238/html5/thumbnails/13.jpg)
Results
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• Packet drop probability• Variation of Beacon rate in EndPreamble (60 Veh/km; 4 Lanes; TxPower = 20 dB;
Packet Size = 300 Bytes)
![Page 14: SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE HIDDEN NODE PROBLEM Carlos Pereira.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf35503460f949c1238/html5/thumbnails/14.jpg)
Results
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• Packet drop probability• Variation of Beacon rate in EndRx (60 Veh/km; 4 Lanes; TxPower = 20 dB; Packet
Size = 300 Bytes)
![Page 15: SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE HIDDEN NODE PROBLEM Carlos Pereira.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf35503460f949c1238/html5/thumbnails/15.jpg)
Results
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• Packet drop probability• Variation of Packet Size (60 Veh/km; 4 Lanes; TxPower = 20 dB; Beacon Rate =
6Hz)
![Page 16: SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE HIDDEN NODE PROBLEM Carlos Pereira.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf35503460f949c1238/html5/thumbnails/16.jpg)
Results
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• Packet drop probability• Variation of Packet Size in StartRx (60 Veh/km; 4 Lanes; TxPower = 20 dB; Beacon
Rate = 6Hz)
![Page 17: SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE HIDDEN NODE PROBLEM Carlos Pereira.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf35503460f949c1238/html5/thumbnails/17.jpg)
Results
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• Packet drop probability• Variation of Packet Size in EndPreamble (60 Veh/km; 4 Lanes; TxPower = 20 dB;
Beacon Rate = 6Hz)
![Page 18: SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE HIDDEN NODE PROBLEM Carlos Pereira.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf35503460f949c1238/html5/thumbnails/18.jpg)
Results
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• Packet drop probability• Variation of Packet Size in EndRx (60 Veh/km; 4 Lanes; TxPower = 20 dB; Beacon
Rate = 6Hz)
![Page 19: SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE HIDDEN NODE PROBLEM Carlos Pereira.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf35503460f949c1238/html5/thumbnails/19.jpg)
Results
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• Packet drop probability• Variation of Vehicle Density (4 Lanes; TxPower = 20 dB; Packet Size = 500 Bytes;
Beacon Rate = 6Hz)
![Page 20: SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE HIDDEN NODE PROBLEM Carlos Pereira.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf35503460f949c1238/html5/thumbnails/20.jpg)
Results
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• Packet drop probability• Variation of Vehicle Density in StartRx (4 Lanes; TxPower = 20 dB; Packet Size =
500 Bytes; Beacon Rate = 6Hz)
![Page 21: SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE HIDDEN NODE PROBLEM Carlos Pereira.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf35503460f949c1238/html5/thumbnails/21.jpg)
Results
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• Packet drop probability• Variation of Vehicle Density in EndPreamble (4 Lanes; TxPower = 20 dB; Packet
Size = 500 Bytes; Beacon Rate = 6Hz)
![Page 22: SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE HIDDEN NODE PROBLEM Carlos Pereira.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf35503460f949c1238/html5/thumbnails/22.jpg)
Results
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• Packet drop probability• Variation of Vehicle Density in EndRx (4 Lanes; TxPower = 20 dB; Packet Size =
500 Bytes; Beacon Rate = 6Hz)
![Page 23: SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE HIDDEN NODE PROBLEM Carlos Pereira.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf35503460f949c1238/html5/thumbnails/23.jpg)
Results
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• Packet drop probability• Variation of TxPower (60 Veh/km; 4 Lanes; Packet Size = 500 Bytes; Beacon Rate
=6Hz)
![Page 24: SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE HIDDEN NODE PROBLEM Carlos Pereira.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf35503460f949c1238/html5/thumbnails/24.jpg)
Results
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• Packet drop probability• Variation of TxPower in StartRx (60 Veh/km; 4 Lanes; Packet Size = 500 Bytes;
Beacon Rate =6Hz)
![Page 25: SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE HIDDEN NODE PROBLEM Carlos Pereira.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf35503460f949c1238/html5/thumbnails/25.jpg)
Results
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• Packet drop probability• Variation of TxPower in EndPreamble (60 Veh/km; 4 Lanes; Packet Size = 500
Bytes; Beacon Rate =6Hz)
![Page 26: SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE HIDDEN NODE PROBLEM Carlos Pereira.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf35503460f949c1238/html5/thumbnails/26.jpg)
Results
26
• Packet drop probability• Variation of TxPower in EndRx (60 Veh/km; 4 Lanes; Packet Size = 500 Bytes;
Beacon Rate =6Hz)
![Page 27: SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE HIDDEN NODE PROBLEM Carlos Pereira.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf35503460f949c1238/html5/thumbnails/27.jpg)
Results
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• Probability of being involved in a collision
![Page 28: SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE HIDDEN NODE PROBLEM Carlos Pereira.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf35503460f949c1238/html5/thumbnails/28.jpg)
Results
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• Probability of being involved in a collision
![Page 29: SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE HIDDEN NODE PROBLEM Carlos Pereira.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf35503460f949c1238/html5/thumbnails/29.jpg)
Results
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• Number of packets overlapping• Average
![Page 30: SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE HIDDEN NODE PROBLEM Carlos Pereira.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf35503460f949c1238/html5/thumbnails/30.jpg)
Results
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• Number of packets overlapping• Average
![Page 31: SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE HIDDEN NODE PROBLEM Carlos Pereira.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf35503460f949c1238/html5/thumbnails/31.jpg)
Results
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• Number of packets overlapping• Histogram (60 Veh/km; 4 Lanes; Packet Size = 500 Bytes; Beacon Rate = 2 Hz)
![Page 32: SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE HIDDEN NODE PROBLEM Carlos Pereira.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf35503460f949c1238/html5/thumbnails/32.jpg)
Results
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• Number of packets overlapping• Histogram (60 Veh/km; 4 Lanes; Packet Size = 500 Bytes; Beacon Rate = 6 Hz)
![Page 33: SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE HIDDEN NODE PROBLEM Carlos Pereira.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf35503460f949c1238/html5/thumbnails/33.jpg)
Results
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• Number of packets overlapping• Histogram (60 Veh/km; 4 Lanes; Packet Size = 500 Bytes; Beacon Rate = 10 Hz)
![Page 34: SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE HIDDEN NODE PROBLEM Carlos Pereira.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf35503460f949c1238/html5/thumbnails/34.jpg)
Results
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• Energy distribution of colliding packets• Histogram for 1 Interferer (60 Veh/km; 4 Lanes; TxPower = 20dB; Packet Size = 500 Bytes;
Beacon Rate = 2 Hz)
![Page 35: SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE HIDDEN NODE PROBLEM Carlos Pereira.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf35503460f949c1238/html5/thumbnails/35.jpg)
Results
35
• Energy distribution of colliding packets• Histogram for 1 Interferer (60 Veh/km; 4 Lanes; TxPower = 20dB; Packet Size = 500 Bytes;
Beacon Rate = 6 Hz)
![Page 36: SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE HIDDEN NODE PROBLEM Carlos Pereira.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf35503460f949c1238/html5/thumbnails/36.jpg)
Results
36
• Energy distribution of colliding packets• Histogram for 1 Interferer (60 Veh/km; 4 Lanes; TxPower = 20dB; Packet Size = 500 Bytes;
Beacon Rate = 10 Hz)
![Page 37: SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE HIDDEN NODE PROBLEM Carlos Pereira.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf35503460f949c1238/html5/thumbnails/37.jpg)
Results
37
• Energy distribution of colliding packets• Histogram for 3 Interferers (60 Veh/km; 4 Lanes; TxPower = 20dB; Packet Size = 500 Bytes;
Beacon Rate = 2 Hz)
![Page 38: SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE HIDDEN NODE PROBLEM Carlos Pereira.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf35503460f949c1238/html5/thumbnails/38.jpg)
Results
38
• Energy distribution of colliding packets• Histogram for 3 Interferers (60 Veh/km; 4 Lanes; TxPower = 20dB; Packet Size = 500 Bytes;
Beacon Rate = 6 Hz)
![Page 39: SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE HIDDEN NODE PROBLEM Carlos Pereira.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf35503460f949c1238/html5/thumbnails/39.jpg)
Results
39
• Energy distribution of colliding packets• Histogram for 3 Interferers (60 Veh/km; 4 Lanes; TxPower = 20dB; Packet Size = 500 Bytes;
Beacon Rate = 10 Hz)
![Page 40: SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE HIDDEN NODE PROBLEM Carlos Pereira.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf35503460f949c1238/html5/thumbnails/40.jpg)
Results
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• Energy distribution of colliding packets• Histogram for 5 Interferers (60 Veh/km; 4 Lanes; TxPower = 20dB; Packet Size = 500 Bytes;
Beacon Rate = 6 Hz)
![Page 41: SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE HIDDEN NODE PROBLEM Carlos Pereira.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf35503460f949c1238/html5/thumbnails/41.jpg)
Results
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• Energy distribution of colliding packets• Histogram for 5 Interferers (60 Veh/km; 4 Lanes; TxPower = 20dB; Packet Size = 500 Bytes;
Beacon Rate = 10 Hz)
![Page 42: SUCCESSIVE INTERFERENCE CANCELLATION IN VEHICULAR NETWORKS TO RELIEVE THE NEGATIVE IMPACT OF THE HIDDEN NODE PROBLEM Carlos Pereira.](https://reader036.fdocuments.in/reader036/viewer/2022062313/56649cf35503460f949c1238/html5/thumbnails/42.jpg)
Conclusions
Our feeling…
42
Benefit
Load6 Mbps