Wireless Engineering

SBVC specializes in PHY/MAC layer technology. We help your engineers analyze, simulate and evaluate communication systems. Our work usually can be categorized as follows:

• System performance analysis and simulation
• Channel modeling and simulation
• Assessment of pros/cons of implementation of systems into ICs
• Regulatory review
• Competitive and comparative analyses of different systems
• Technical and strategic evaluation of IP, including expert witness engagements

Some of our more recent projects include:

Baseband Processor ASIC Designs for Wireless LAN

OFDM Baseband for IEEE 802.11a

• Overall architecture design

• Analysis and specification of transceiver interface

• Complete Matlab simulation

• Developed unique ASIC clocking system

• Proprietary Receiver Acquisition design offered as much as 5 dB performance gain as compared to conventional designs

• Proprietary carrier tracking loop design offered as much as 10 dB performance gain as compared to conventional designs

BPSK/QPSK/CCK Baseband for IEEE 802.11b

• Overall architecture design (keeping in mind the need to integrate with the OFDM modem)

• Analysis and specification of transceiver interface

• Developed unique ADC/DAC sampling subsystem

• Complete Matlab simulation

Broadband Wireless Access Modulation

• Provided user data rate of 160 kb/s

• Developed a patented multiple carrier, orthogonal CDMA (OCDMA) system

• Tolerated multi-path delay spreads as large as 1 microsecond with no detectable degradation due to multi-path

• OCDMA is superior to conventional CDMA (IS-95) in that it completely avoids intra-cell user access noise

Proposal Review: Qualcomm's FCC Application for the Globalstar System

• Funded by Motorola to provide a critique of the Globalstar application to the FCC

• We found numerous overly optimistic assumptions