On the performance of adaptive HARQ with no channel state information feedback

H. Mukhtar, A. Al-Dweik, M. Al-Mualla

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

This paper presents an adaptive power control scheme for hybrid automatic repeat request (HARQ) systems with no channel state information feedback. The power control process is developed by noting that the throughput of particular HARQ systems may exhibit a staircase behavior. In such scenarios, the throughput remains fixed for a wide range of signal-to-noise ratios (SNRs). Consequently, the transmit power can be reduced significantly while the throughput remains almost unchanged. The obtained results reveal that invoking power optimization algorithms can achieve a significant power saving of about 80% for particular scenarios. The system considered in this work is a truncated HARQ with turbo product codes (TPC). Chase combining is also used to combine the retransmitted packets with the original transmission. HARQ acknowledgment/negative acknowledgment (ACK/NACK) feedback is used to estimate the packet error rate from which the system throughput is computed.

Original languageBritish English
Title of host publication2015 IEEE Wireless Communications and Networking Conference, WCNC 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages446-451
Number of pages6
ISBN (Electronic)9781479984060
DOIs
StatePublished - 17 Jun 2015
Event2015 IEEE Wireless Communications and Networking Conference, WCNC 2015 - New Orleans, United States
Duration: 9 Mar 201512 Mar 2015

Publication series

Name2015 IEEE Wireless Communications and Networking Conference, WCNC 2015

Conference

Conference2015 IEEE Wireless Communications and Networking Conference, WCNC 2015
Country/TerritoryUnited States
CityNew Orleans
Period9/03/1512/03/15

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