Optimization of a relay-assisted link with buffer state information at the source

Ahmed El Shafie; Mohammad Galal Khafagy; Ahmed Sultan

doi:10.1109/LCOMM.2014.2363115

Optimization of a relay-assisted link with buffer state information at the source

Ahmed El Shafie, Mohammad Galal Khafagy, Ahmed Sultan

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

This letter proposes a random-access scheme employed by a source in a three-node network composed of a source, a relay, and a destination. The source knows the exact number of packets at the finite buffer of the relay. Based on this knowledge, the source probabilistically accesses the channel. We consider a fixed-rate transmission and study the cases with and without channel outage state information at the transmitting nodes. We maximize the throughput in both cases and provide numerical results to illustrate and verify the ideas presented in this work.

Original language	English (US)
Article number	6924731
Pages (from-to)	2149-2152
Number of pages	4
Journal	IEEE Communications Letters
Volume	18
Issue number	12
DOIs	https://doi.org/10.1109/LCOMM.2014.2363115
State	Published - Dec 1 2014

Keywords

BSI
Buffer-aided relay
CSI
linear-fractional program
Markov chain
queuing theory

ASJC Scopus subject areas

Modeling and Simulation
Computer Science Applications
Electrical and Electronic Engineering

Access to Document

10.1109/LCOMM.2014.2363115

Cite this

@article{9d82e296f62f44b0ae9d0f12d27c7f8f,

title = "Optimization of a relay-assisted link with buffer state information at the source",

abstract = "This letter proposes a random-access scheme employed by a source in a three-node network composed of a source, a relay, and a destination. The source knows the exact number of packets at the finite buffer of the relay. Based on this knowledge, the source probabilistically accesses the channel. We consider a fixed-rate transmission and study the cases with and without channel outage state information at the transmitting nodes. We maximize the throughput in both cases and provide numerical results to illustrate and verify the ideas presented in this work.",

keywords = "BSI, Buffer-aided relay, CSI, linear-fractional program, Markov chain, queuing theory",

author = "{El Shafie}, Ahmed and Khafagy, {Mohammad Galal} and Ahmed Sultan",

note = "Publisher Copyright: {\textcopyright} 2014 IEEE.",

year = "2014",

month = dec,

day = "1",

doi = "10.1109/LCOMM.2014.2363115",

language = "English (US)",

volume = "18",

pages = "2149--2152",

journal = "IEEE Communications Letters",

issn = "1089-7798",

publisher = "Institute of Electrical and Electronics Engineers",

number = "12",

}

TY - JOUR

T1 - Optimization of a relay-assisted link with buffer state information at the source

AU - El Shafie, Ahmed

AU - Khafagy, Mohammad Galal

AU - Sultan, Ahmed

PY - 2014/12/1

Y1 - 2014/12/1

N2 - This letter proposes a random-access scheme employed by a source in a three-node network composed of a source, a relay, and a destination. The source knows the exact number of packets at the finite buffer of the relay. Based on this knowledge, the source probabilistically accesses the channel. We consider a fixed-rate transmission and study the cases with and without channel outage state information at the transmitting nodes. We maximize the throughput in both cases and provide numerical results to illustrate and verify the ideas presented in this work.

AB - This letter proposes a random-access scheme employed by a source in a three-node network composed of a source, a relay, and a destination. The source knows the exact number of packets at the finite buffer of the relay. Based on this knowledge, the source probabilistically accesses the channel. We consider a fixed-rate transmission and study the cases with and without channel outage state information at the transmitting nodes. We maximize the throughput in both cases and provide numerical results to illustrate and verify the ideas presented in this work.

KW - BSI

KW - Buffer-aided relay

KW - CSI

KW - linear-fractional program

KW - Markov chain

KW - queuing theory

UR - http://www.scopus.com/inward/record.url?scp=84919470139&partnerID=8YFLogxK

U2 - 10.1109/LCOMM.2014.2363115

DO - 10.1109/LCOMM.2014.2363115

M3 - Article

AN - SCOPUS:84919470139

SN - 1089-7798

VL - 18

SP - 2149

EP - 2152

JO - IEEE Communications Letters

JF - IEEE Communications Letters

IS - 12

M1 - 6924731

ER -

Optimization of a relay-assisted link with buffer state information at the source

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this