Transmission Capacity of Ad-Hoc Networks With Multiple Antennas Using Transmit Stream Adaptation and Interference Cancelation

The transmission capacity of an ad-hoc network is the maximum density of active transmitters per unit area, given an outage constraint at each receiver for a fixed rate of transmission. Assuming that the transmitter locations are distributed as a Poisson point process, this paper derives upper and lower bounds on the transmission capacity of an ad-hoc network when each node is equipped with multiple antennas. The transmitter either uses eigen multi-mode beamforming or a subset of its antennas to transmit multiple data streams, while the receiver uses partial zero forcing to cancel certain interferers using some of its Spatial Receive Degrees Of Freedom (SRDOF).

Provided by: University of Texas Topic: Mobility Date Added: Sep 2011 Format: PDF

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