1

Stanford University

1

Re-Configurable Multimode, Multiband Information Transfer Systems

M. Flynn, M. Morf, Stanford University

M. Cummings, enVia

Global Mobile Information Systems (GloMo) ProgramPrincipal Investigators Meeting

July 28-30, 1998Arlington, Virginia

Low Power, Small Size, Secure Software Defined Radio, Re-Configurable Mobile Communications & Computing

2

Stanford University

2

Adaptive Radios• Multi-Band, Multi-Service• Small Formfactor, Low Power• PLD co-processing (Prog.Log.Dev.)

Radio IMPACT• Hand-held, ubiquitous

• Mission Adaptive

• Security

• Field upgradable

SCHEDULE 1998Jan: Digital hw physical design

Apr: Digital hw test Security sw demo, 2 channel

Oct: 2 Service RF, hw & sw demos

Re-Configurable Multimode, Multiband Information Transfer Systems

Stanford University, Computer Systems Lab enVia

Secure Digital Radio

Adaptive Architectures• Secure, Robust, Redundant• PAM-Blox• Adaptive Arithmetic

Security plan

Security PLD demo, 2 channel

Architecture IMPACT

• Arithmetic• Signal Processing

Oct: End of Contract

http://umunhum.stanford.edu/res_html/darpa/radio.html

3

Stanford University

3

Objectives

Adaptive Radios Multi-Band, Multi-Service Small Formfactor, Low Power PLD co-processing Programmable Logic Devices

Adaptive Architectures Secure, Robust, Redundant PAM-Blox, Firm/Software tools Adaptive Arithmetic

4

Stanford University

4

Impact on DoD

Radio IMPACT Hand-held, ubiquitous

Mission Adaptive

Security

Field upgradable

Architecture IMPACT

Arithmetic Signal Processing

5

Stanford University

5

Program Background

Stanford Architecture & Arithmetic:

Related Work: SNAP (Arithmetic, HOF (PPA, CORDIC) , Wave-Pipelining) Tools (Chip planning, PAM- Blox, (P )AWB, ...) Architectures studies: Superscalar, VLIW, Multi-Media (Video, LG)

Keyboard-less workstation Advanced HW Technologies (photonics, Q-dots, UWB [DARPA])

enVia, Morphics

Quantum-dots, Ultra-Wide-Band

6

Stanford University

6

Challenges/Problem

Program Task Overview, Challenges & Issues

Radio, enViaHand Held Communication Product VisionMulti-Band RF front-endMulti-Service Reconfigurable base-band

Security, SUSecurity Issues (interactions, reconfiguration, ...)Security Algorithms (Space-Time-Code-Diversity, ...)SU Wireless Security Demo

Flexible Architecture Study, SUPAM-Blox, ToolsImplementing Arithmetic & Algorithms in PLDs

7

Stanford University

7

Technical Approach

Stanford Security Demo:

1. Simulation of Security Algorithms on Workstations ( 3 Laptops )

2. Demonstration of Security Algorithms with wireless modems (Ricochet,

FreeWave)

3. Demonstration of Security Algorithms on PLDs (Pamette, PAM-Blox)

4. System Integration (User Level, TCP/IP, Reconfigurable Hardware)

8

Stanford University

8

Accomplishments

Technical Progress: Security [SU]Reconfigurable Security Algorithms:

IDEA (arithmetic intensive) Pamette implementation @ 528Mbps = 1/2Giga-bps,3 times speedup over somewhat older ASIC "VINCI", and50% reduction in Power, 30% reduction in MOPS/Watt.

DES (RAW benchmark) Pamette implementation +50% speed, -50% area vs. RAW.

Space-Time-Code-Diversity (~secret-sharing) has low hw complexity

>> Challenge: system integration, standards, management.Need to test our security algorithms with real RF linksWireless hardware (e.g. freewave.com and ricochet.com)Testing standard protocols (e.g. TCP/IP, SLIP/PPP):

some of the tested hw requires firmware or protocol changes,workarounds: user-level, IPv4, Ipv6, hw-level.

>>Opportunities: combining security, robustness, compression, performance

9

Stanford University

9

Status

SCHEDULE 1998

Jan: Digital hw physical design

Apr: Digital hw test Security sw demo, 2 channelsOct: 2 Service RF, hw & sw demos

Security plan

Security PLD demo, 2 channels

Oct: End of Contract

10

Stanford University

10

SU PLD Hw & Sw and Development Environment

Technologies / Parameters

• PLD • Programmability

• DSP • Performance

• Microprocessor • Power

11

Stanford University

11

Power

DSP versus PLD

• Hurry & Wait vs. Just in Time

• Granularity of multiple DSPs

• Power wasted by transfer of instructions(control) from memory to the DSP vs.PLD has more compact representation

of the control information

12

Stanford University

12

www.research.digital.com:80/SRC/pamette/overview/sld007.html

http://umunhum.stanford.edu/PAM-Blox/http://umunhum.stanford.edu/~oskar/Oskar Mencer:

13

Stanford University

13

Reconfigurable Security Architectures

• Multi Band Multi Service Radios enable new forms of Security:

- Multiple Paths allow "Secret Sharing" or Space Time Code Diversity- Third Party Authentication and other security arrangements

• Reconfigurable Security Applications

- Mission adaptive- Field upgrade

• Reconfigurable Security Implementations:

- User Level- Session Level- IP Level- HW Level

- FirmWare Level- ASIC/Chip Level

14

Stanford University

14

Reconfigurable Security Architectures(continued)

Security via Multi Band, Multi Service, and Multiple Paths

Challenge problem driven security solutions

Diversity enables new forms of security:Multiple Paths allow "Secret Sharing" ( 2 to k/n paths)Multi Band (band switching/hopping to spread spectrum)Multi Service (space, time, code/type diversity)Combinations

Third Party Authentication and other security arrangements

15

Stanford University

15

Plans for Future Development

Future Technical Work:

Flexible Systems, DSP, Security, Integration:

Incorporate Security & Video Compression into PLDs

Incorporate (baseband) DSP into PLDs

Incorporate IF DSP into PLDs

Basic Studies:

Provide Standard PAM-Blox

Flexible Arithmetic for DSP (PLD, ASIC, Custom AUs)

Higher Order Functions (e.g. PPAs, CORDIC,... SimOS)

Advanced Technologies (Photonics, Quantum Devices, ... UWB)

16

Stanford University

16

Technology Transition

Military Applications are pursued by:

other DARPA projects . . .

Commercial Applications are underway by:

enViaMorphics $

17

Stanford University

17

Key Resources

Principal Investigator: Michael J. FlynnAddress: E.E. Department, Gates Computer Science Building, Room 334, Stanford, CA 94305, e-mail: flynn@umunhum.Stanford.edu , Phone: (650) 723-1450, Fax: (650) 725-6949

Co-Principal Investigator: Martin MorfAddress: E.E. Department, Gates Computer Science Building, Room 335, Stanford, CA 94305, e-mail: morf@ umunhum.Stanford.edu , Phone: (650) 723-0140, Fax: (650) 725-6949

Principal Investigator for Subcontract: Mark Cummings, enVia,Address: enVia, Inc., 12340 Saratoga/Sunnyvale Rd., Saratoga, Ca 95070, e-mail: cummings@envia.com , Phone/Fax: (408) 777-4802, mobile: (408) 813-8765

http://umunhum.stanford.edu/res_html/darpa/radio.html

WebPages to download:Publications PAM-Blox software tools and design libraries

http://umunhum.stanford.edu/PAM-Blox/

http://umunhum.stanford.edu/~oskar/Oskar Mencer: