Computer Science – Information Theory
Scientific paper
2010-09-16
Computer Science
Information Theory
51 pages, 19 figures, submitted to IEEE Transactions on Information Theory
Scientific paper
This paper investigates the performance of open-loop multi-antenna point-to-point links in ad hoc networks with slotted ALOHA medium access control (MAC). We consider spatial multiplexing transmission with linear maximum ratio combining and zero forcing receivers, as well as orthogonal space time block coded transmission. New closed-form expressions are derived for the outage probability, throughput and transmission capacity. Our results demonstrate that both the best performing scheme and the optimum number of transmit antennas depend on different network parameters, such as the node intensity and the signal-to-interference-and-noise ratio operating value. We then compare the performance to a network consisting of single-antenna devices and an idealized fully centrally coordinated MAC. These results show that multi-antenna schemes with a simple decentralized slotted ALOHA MAC can outperform even idealized single-antenna networks in various practical scenarios.
Collings Iain B.
Louie Raymond H. Y.
McKay Matthew R.
No associations
LandOfFree
Open-Loop Spatial Multiplexing and Diversity Communications in Ad Hoc Networks does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Open-Loop Spatial Multiplexing and Diversity Communications in Ad Hoc Networks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Open-Loop Spatial Multiplexing and Diversity Communications in Ad Hoc Networks will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-27181