Mobility

Optimal Scheduling Policies With Mutual Information Accumulation in Wireless Networks

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Executive Summary

In this paper, the authors aim to develop scheduling policies to maximize the stability region of a wireless network under the assumption that mutual information accumulation is implemented at the physical layer. This enhanced physical layer capability enables the system to accumulate information even when the link between two nodes is not good and a packet cannot be decoded within a slot. The result is an expansion of the stability region of the system. The accumulation process does not satisfy the i.i.d assumption that underlies many previous analysis in this area. Therefore it also brings new challenges to the problem. They propose two dynamic scheduling algorithms to overcome this difficulty.

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