Silvus Technologies, Inc. — Department of Defense SBIR Phase I: A15-020
Silvus Technologies, Inc. — SBIR Phase I award from Department of Defense.
- Amount
- $99,981
- Agency
- Department of Defense · Army
- Program / Phase
- SBIR · Phase I
- Topic
- A15-020
- Solicitation
- 2015.1
- NAICS
- —
- Place of performance
- CA
- Period
- 2015-09-29 → 2016-03-28
Description
Interference Alignment (IA) has emerged as a promising technique to improve the capacity of future wireless networks. In IA, radio terminals with multiple antennas co-optimize, or align their transmitter and receiver antennas within a group (or cluster) of users, to suppress or eliminate interference within the cluster. We propose a unique slotted MAC structure that uses Zadoff-Chu sequences to distinguish user transmissions during the alignment. Users are able to simultaneously update their antennas weights, avoiding inefficient contention-based mechanisms to assign slots. We use a unique antenna algorithm, the Minimum Interference Leakage Beamformer (MIL-B) as our starting point. Simulations show MIL-B gives an amazing 4x gain over a standard MIMO system sending to one user at a time (TDMA). Our MAC design is fully distributed, yet is able to incorporate mechanisms for user selection, fairness, and synchronization.