Wireless Network Control with Privacy Using Hybrid ARQ

Details Wireless Network Control with Privacy Using Hybrid ARQ Wireless Network Control with Privacy Using Hybrid ARQ

2012-02-06

arxiv.org/abs/1202.1178v1

Computer Science

Information Theory

Scientific paper

We consider the problem of resource allocation in a wireless cellular network, in which nodes have both open and private information to be transmitted to the base station over block fading uplink channels. We develop a cross-layer solution, based on hybrid ARQ transmission with incremental redundancy. We provide a scheme that combines power control, flow control, and scheduling in order to maximize a global utility function, subject to the stability of the data queues, an average power constraint, and a constraint on the privacy outage probability. Our scheme is based on the assumption that each node has an estimate of its uplink channel gain at each block, while only the distribution of the cross channel gains is available. We prove that our scheme achieves a utility, arbitrarily close to the maximum achievable utility given the available channel state information.

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