Optimized multi-antenna communication in ad-hoc networks with opportunistic routing

We consider the problem of using multiple antennas to maximize end-to-end performance in a multi-hop ad hoc wireless network with opportunistic routing. We find that when a single data stream is sent per hop, performance is maximized by aggressively increasing spatial reuse, as opposed to increasing per-hop length or rate. We also show that using spatial multiplexing to transmit multiple streams per hop results in a linear increase in performance with antennas, even with fixed spatial reuse, and is generally superior to sending only a single stream.