Performance analysis of slotted Aloha in interference-dominating wireless ad-hoc networks

In this paper, we propose an analytical approach to derive the exact value of saturation throughput of Slotted Aloha in an interference-dominating wireless ad-hoc network. In an interference-dominating wireless network, a receiver could simultaneously receive a number of packets from a variety of tr...

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Bibliographic Details
Published in:IEEE communications letters 2006-05, Vol.10 (5), p.402-404
Main Author: GAU, Rung-Hung
Format: Article
Language:English
Subjects:
Ad hoc networks
Applied sciences
Computer simulation
Corresponding states
Exact sciences and technology
Intelligent networks
Interference
Mathematical analysis
Mathematical models
Media Access Protocol
Networks
Performance analysis
Power control
Receivers
Saturation
State-space methods
Telecommunications
Telecommunications and information theory
Teleprocessing networks. Isdn
Throughput
Transmitters
Valuation and optimization of characteristics. Simulation
Wireless communication
Wireless networks
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Summary:In this paper, we propose an analytical approach to derive the exact value of saturation throughput of Slotted Aloha in an interference-dominating wireless ad-hoc network. In an interference-dominating wireless network, a receiver could simultaneously receive a number of packets from a variety of transmitters, as long as the signal-to-interference-plus-noise ratio exceeds a predetermined threshold. Our analysis is based on the theory of discrete-time Markov chain. Unlike previous methods in the literature, when our approach is used, the cardinality of the corresponding state space is reduced to be at most n, where n is the total number of nodes in the network. The reduction makes evaluating the saturation throughput of slotted Aloha feasible in practice. We show that our numerical results are consistent with simulation results.
ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2006.1633337