Opportunistic subchannel scheduling for OFDMA networks with network coding at relay stations

Byung Gook Kim, Jang-Won Lee

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

6 Citations (Scopus)

Abstract

In this paper, we study an opportunistic subchannel scheduling problem for the relay-based OFDMA cellular network where relay stations (RSs) can perform opportunistic network coding with downlink and uplink sessions of a mobile station (MS). In wireless networks, network coding is one of promising techniques to improve network performance in various aspects. However, previous studies did not provide optimal opportunistic resource allocation solutions for the OFDMA networks with network coding-aware RSs as well as they did not consider practical duplexing schemes for the transmission of network coded data. In this paper, to allow network coding with downlink and uplink sessions at RSs, we consider a time-division duplexing (TDD) based time-slot structure. We formulate a stochastic optimization problem to maximize the average weighted-sum rate for both downlink and uplink sessions. Then, by solving the problem, we provide an optimal opportunistic subchannel scheduling algorithm that can opportunistically use network coding with considering time-varying channel states.

Original languageEnglish
Title of host publication2010 IEEE Global Telecommunications Conference, GLOBECOM 2010
DOIs
Publication statusPublished - 2010 Dec 1
Event53rd IEEE Global Communications Conference, GLOBECOM 2010 - Miami, FL, United States
Duration: 2010 Dec 62010 Dec 10

Publication series

NameGLOBECOM - IEEE Global Telecommunications Conference

Other

Other53rd IEEE Global Communications Conference, GLOBECOM 2010
CountryUnited States
CityMiami, FL
Period10/12/610/12/10

Fingerprint

Network coding
Scheduling
Network performance
Scheduling algorithms
Resource allocation
Wireless networks

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Cite this

Kim, B. G., & Lee, J-W. (2010). Opportunistic subchannel scheduling for OFDMA networks with network coding at relay stations. In 2010 IEEE Global Telecommunications Conference, GLOBECOM 2010 [5683679] (GLOBECOM - IEEE Global Telecommunications Conference). https://doi.org/10.1109/GLOCOM.2010.5683679
Kim, Byung Gook ; Lee, Jang-Won. / Opportunistic subchannel scheduling for OFDMA networks with network coding at relay stations. 2010 IEEE Global Telecommunications Conference, GLOBECOM 2010. 2010. (GLOBECOM - IEEE Global Telecommunications Conference).
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Kim, BG & Lee, J-W 2010, Opportunistic subchannel scheduling for OFDMA networks with network coding at relay stations. in 2010 IEEE Global Telecommunications Conference, GLOBECOM 2010., 5683679, GLOBECOM - IEEE Global Telecommunications Conference, 53rd IEEE Global Communications Conference, GLOBECOM 2010, Miami, FL, United States, 10/12/6. https://doi.org/10.1109/GLOCOM.2010.5683679

Opportunistic subchannel scheduling for OFDMA networks with network coding at relay stations. / Kim, Byung Gook; Lee, Jang-Won.

2010 IEEE Global Telecommunications Conference, GLOBECOM 2010. 2010. 5683679 (GLOBECOM - IEEE Global Telecommunications Conference).

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

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Kim BG, Lee J-W. Opportunistic subchannel scheduling for OFDMA networks with network coding at relay stations. In 2010 IEEE Global Telecommunications Conference, GLOBECOM 2010. 2010. 5683679. (GLOBECOM - IEEE Global Telecommunications Conference). https://doi.org/10.1109/GLOCOM.2010.5683679