Referenced Items are not available for this document.
A random-access-based feedback protocol with a reservation-based (RB) channel is proposed for multiuser diversity in a wireless time-division-duplex system. The feedback channels consist of one RB channel and several contention-based (CB) channels. The users randomly access the CB channels if their channel states exceed a threshold, and a base station (BS) schedules a user who reports the highest signal-to-noise ratio from multiple users that successfully provide feedback. If there is no successful feedback in the CB channels, the BS uses the feedback information that a designated user reports through the RB channel. The proposed feedback protocol achieves an almost ideal sum-rate capacity with a fixed number of feedback channels regardless of the number of users.
Published in:
Vehicular Technology, IEEE Transactions on
(Volume:58
,
Issue:
3
)
Date of Publication: March 2009
- Page(s):
- 1612 - 1616
- ISSN :
- 0018-9545
- INSPEC Accession Number:
- 10520138
- Digital Object Identifier :
- 10.1109/TVT.2008.929467
- Product Type:
- Journals & Magazines
- Date of Publication :
- 12 August 2008
- Date of Current Version :
- 17 March 2009
- Issue Date :
- March 2009
- Sponsored by :
- IEEE Vehicular Technology Society
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