Channel allocation and rate adaptation for relayed transmission over correlated fading channels

Kyu Sung Hwang, Md Jahangir Hossain, Young Chai Ko, Mohamed Slim Alouini

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

We consider, in this paper, channel allocation and rate adaptation scheme for relayed transmission over correlated fading channels via cross-layer design. Specifically, jointly considering the data link layer buffer occupancy and channel quality at both the source and relay nodes, we develop an optimal channel allocation and rate adaptation policy for a dual-hop relayed transmission. As such the overall transmit power for the relayed system is minimized while a target packet dropping rate (PDR) due to buffer over flows is guaranteed. In order to find such an optimal policy, the channel allocation and rate adaptation transmission framework is formulated as a constraint Markov decision process (CMDP). The PDR performance of the optimal policy is compared with that of two conventional suboptimal schemes, namely the channel quality based and the buffer occupancy based channel allocation schemes. Numerical results show that for a given power budget, the optimal scheme requires significantly less power than the conventional schemes in order to maintain a target PDR.

Original languageEnglish
Title of host publication2009 IEEE 20th Personal, Indoor and Mobile Radio Communications Symposium, PIMRC 2009
DOIs
Publication statusPublished - 2009
Event2009 IEEE 20th Personal, Indoor and Mobile Radio Communications Symposium, PIMRC 2009 - Tokyo, Japan
Duration: 2009 Sep 132009 Sep 16

Publication series

NameIEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC

Other

Other2009 IEEE 20th Personal, Indoor and Mobile Radio Communications Symposium, PIMRC 2009
CountryJapan
CityTokyo
Period09/9/1309/9/16

Keywords

  • Channel allocation
  • Finite state Markov channel
  • Markov decision process and adaptive coded modulation
  • Packet scheduling
  • Relayed transmission

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Channel allocation and rate adaptation for relayed transmission over correlated fading channels'. Together they form a unique fingerprint.

  • Cite this

    Hwang, K. S., Hossain, M. J., Ko, Y. C., & Alouini, M. S. (2009). Channel allocation and rate adaptation for relayed transmission over correlated fading channels. In 2009 IEEE 20th Personal, Indoor and Mobile Radio Communications Symposium, PIMRC 2009 [5450001] (IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC). https://doi.org/10.1109/PIMRC.2009.5450001