Dynamic Power Allocation and Routing for Time Varying Wireless Networks

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Dynamic Power Allocation and Routing for Time Varying Wireless Networks (2003)

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by Michael J. Neely , Eytan Modiano , Charles E. Rohrs

Venue:	IEEE Journal on Selected Areas in Communications
Citations:	358 - 73 self

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@INPROCEEDINGS{Neely03dynamicpower,
    author = {Michael J. Neely and Eytan Modiano and Charles E. Rohrs},
    title = {Dynamic Power Allocation and Routing for Time Varying Wireless Networks},
    booktitle = {IEEE Journal on Selected Areas in Communications},
    year = {2003},
    pages = {89--103}
}

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Abstract

We consider dynamic routing and power allocation for a wireless network with time varying channels. The network consists of power constrained nodes which transmit over wireless links with adaptive transmission rates. Packets randomly enter the system at each node and wait in output queues to be transmitted through the network to their destinations. We establish the capacity region of all rate matrices (# ij ) that the system can stably support---where (# ij ) represents the rate of traffic originating at node i and destined for node j. A joint routing and power allocation policy is developed which stabilizes the system and provides bounded average delay guarantees whenever the input rates are within this capacity region. Such performance holds for general arrival and channel state processes, even if these processes are unknown to the network controller. We then apply this control algorithm to an ad-hoc wireless network where channel variations are due to user mobility, and compare its performance with the Grossglauser-Tse relay model developed in [13].

Keyphrases

dynamic power allocation time varying wireless network capacity region general arrival power allocation policy user mobility output queue channel state process adaptive transmission rate power allocation input rate bounded average delay joint routing grossglauser-tse relay model wireless link dynamic routing channel variation rate matrix network controller wireless network ad-hoc wireless network

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