Maximizing Network Utility and Network Lifetime in Energy-Constrained Ad Hoc Wireless Networks 


Vol. 32,  No. 10, pp. 1023-1033, Oct.  2007


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  Abstract

This study considers a joint congestion control, routing and power control for energy-constrained wireless networks. A mathematical model is introduced which includes maximization of network utility, maximization of network lifetime, and trade-off between network utility and network lifetime. The framework would maximize the overall throughput of the network where the overall throughput depends on the data flow rates which in turn is dependent on the link capacities. The link capacity on the other hand is a function of transmit power levels and link Signal-to-Interference-plus-Noise-Ratio (SINR) which makes the power allocation problem inherently difficult to solve. Using dual decomposition techniques, subgradient method, and logarithmic transformations, a joint algorithm for rate and power allocation problems was formulated. Numerical examples for each optimization problem were also provided.

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  Cite this article

[IEEE Style]

R. Casaquite and W. Hwang, "Maximizing Network Utility and Network Lifetime in Energy-Constrained Ad Hoc Wireless Networks," The Journal of Korean Institute of Communications and Information Sciences, vol. 32, no. 10, pp. 1023-1033, 2007. DOI: .

[ACM Style]

Reizel Casaquite and Won-Joo Hwang. 2007. Maximizing Network Utility and Network Lifetime in Energy-Constrained Ad Hoc Wireless Networks. The Journal of Korean Institute of Communications and Information Sciences, 32, 10, (2007), 1023-1033. DOI: .

[KICS Style]

Reizel Casaquite and Won-Joo Hwang, "Maximizing Network Utility and Network Lifetime in Energy-Constrained Ad Hoc Wireless Networks," The Journal of Korean Institute of Communications and Information Sciences, vol. 32, no. 10, pp. 1023-1033, 10. 2007.