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Efficient Allocation of Periodic Feedback Channels in Broadband Wireless Networks | IEEE Journals & Magazine | IEEE Xplore

Efficient Allocation of Periodic Feedback Channels in Broadband Wireless Networks


Abstract:

Advanced wireless technologies such as multiple-input-multiple-output (MIMO) require each mobile station (MS) to send a lot of feedback to the base station. This periodic...Show More

Abstract:

Advanced wireless technologies such as multiple-input-multiple-output (MIMO) require each mobile station (MS) to send a lot of feedback to the base station. This periodic feedback consumes much of the uplink bandwidth. This expensive bandwidth is very often viewed as a major obstacle to the deployment of MIMO and other advanced closed-loop wireless technologies. This paper is the first to propose a framework for efficient allocation of periodic feedback channels to the nodes of a wireless network. Several relevant optimization problems are defined and efficient algorithms for solving them are presented. A scheme for deciding when the base station (BS) should invoke each algorithm is also proposed and shown through simulations to perform very well.
Published in: IEEE/ACM Transactions on Networking ( Volume: 23, Issue: 2, April 2015)
Page(s): 426 - 436
Date of Publication: 27 January 2014

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