Transmission Capacity of Wireless Ad Hoc Networks With Outage Constraints
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- 21 November 2005
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Information Theory
- Vol. 51 (12) , 4091-4102
- https://doi.org/10.1109/tit.2005.858939
Abstract
In this paper, upper and lower bounds on the transmission capacity of spread-spectrum (SS) wireless ad hoc networks are derived. We define transmission capacity as the product of the maximum density of successful transmissions multiplied by their data rate, given an outage constraint. Assuming that the nodes are randomly distributed in space according to a Poisson point process, we derive upper and lower bounds for frequency hopping (FH-CDMA) and direct sequence (DS-CDMA) SS networks, which incorporate traditional modulation types (no spreading) as a special case. These bounds cleanly summarize how ad hoc network capacity is affected by the outage probability, spreading factor, transmission power, target signal-to-noise ratio (SNR), and other system parameters. Using these bounds, it can be shown that FH-CDMA obtains a higher transmission capacity than DS-CDMA on the order of M/sup 1-2//spl alpha//, where M is the spreading factor and /spl alpha/>2 is the path loss exponent. A tangential contribution is an (apparently) novel technique for obtaining tight bounds on tail probabilities of additive functionals of homogeneous Poisson point processes.Keywords
This publication has 25 references indexed in Scilit:
- Modulation, coding and signal processing for wireless communications - Interference cancellation for cellular systems: a contemporary overviewIEEE Wireless Communications, 2005
- Transmission capacity of CDMA ad hoc networks employing successive interference cancellationPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- The critical radius in CDMA ad hoc networksPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- The Transport Capacity of Wireless Networks Over Fading ChannelsIEEE Transactions on Information Theory, 2005
- Power controlled multiple access (PCMA) in wireless communication networksPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Power-controlled matiple access schemes for next-generation wireless packet networksIEEE Wireless Communications, 2002
- The capacity of wireless networksIEEE Transactions on Information Theory, 2000
- A simple distributed autonomous power control algorithm and its convergenceIEEE Transactions on Vehicular Technology, 1993
- The role of spread spectrum in packet radio networksProceedings of the IEEE, 1987
- Spread spectrum communications--Myths and realitiesIEEE Communications Magazine, 1979