IEEE communications letters, 2009-06, Vol.13 (6), p.384-386
2009
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Details
- Autor(en) / Beteiligte
- Titel
- Opportunistic feedback with multiple classes in wireless systems
- Ist Teil von
- IEEE communications letters, 2009-06, Vol.13 (6), p.384-386
- Ort / Verlag
- New York, NY: IEEE
- Erscheinungsjahr
- 2009
- Quelle
- IEEE Electronic Library (IEL)
- Beschreibungen/Notizen
- An opportunistic feedback protocol with multiple access probabilities is proposed, where users are divided into several classes according to their measured channel state. Different random access probabilities are assigned to each class. All users compete to send a feedback message through random access if their scheduling metric exceeds a threshold. An analytical model is developed for evaluating the proposed feedback protocol in terms of the sum-rate capacity and the feedback load. The proposed feedback protocol achieves an asymptotic sum-rate capacity with a minimal amount of feedback information.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 1089-7798eISSN: 1558-2558DOI: 10.1109/LCOMM.2009.081851Titel-ID: cdi_ieee_primary_5090411
- Format
- –
- Schlagworte
- Access protocols, adaptive modulation, Adaptive scheduling, Analytical models, Applied sciences, Asymptotic properties, Base stations, Capacity planning, Channel state information, Channels, Data communication, Exact sciences and technology, Feedback, Information, signal and communications theory, limited feedback, Mathematical analysis, Messages, Modulation, demodulation, Multiple access, opportunistic scheduling, priority service, Quantization, Random access, Rayleigh channels, Scheduling, Signal and communications theory, State feedback, Systems, networks and services of telecommunications, Telecommunications, Telecommunications and information theory, Transmission and modulation (techniques and equipments)