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Auctions have been proposed as a way to provide economic incentives to dynamically allocate unused spectrum to users in need of it. Previously proposed auction schemes do not take into account the fact that users' power and bandwidth constraints might prevent them from transmitting their bid prices to the auctioneer with high precision, and that these transmitted bid prices must travel through a noisy...
A major challenge in OFDMA cellular networks is to efficiently allocate scarce channel resources and optimize global system performance. Specifically, the allocation problem across cells/base-stations is known to incur extremely high computational/communication complexity. Recently, Gibbs sampling has been used to solve the downlink inter-cell allocation problem with distributed algorithms that incur...
The above paper mistakenly employs the incorrect inequalities of (47) and (48) in Appendix B, and as a result, it leads to incorrect derivation procedures of the lower- and the upper-bounds on the average mutual information.
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