Optimal Backpressure Scheduling in Wireless Networks Using Mutual Information Accumulation

In this paper, the authors develop scheduling policies that maximize the stability region of a wireless network under the assumption that mutual information accumulation is implemented at the physical layer. When the link quality between nodes is not sufficiently high that a packet can be decoded within a single slot, the system can accumulate information across multiple slots, eventually decoding the packet. The result is an expanded stability region. The accumulation process over weak links is temporally coupled and therefore does not satisfy the independent and identically distributed (i.i.d) assumption that underlies many previous analysis in this area.

Provided by: Institute of Electrical and Electronics Engineers Topic: Mobility Date Added: Sep 2011 Format: PDF

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