A comparison of orthogonal and overlapped relay subchannel allocation schemes for OFDMA based systems

Youngmin Cho, Dae Wook Byun, Seung Hun Jang, Janghoon Yang, Dong Ku Kim

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

Abstract

This paper investigates the comparison of two different channelization schemes of relay links in the relay aided cellular network for different transmit power and the number of relays. One is the orthogonal relay subchannel allocation (ORRSA) which assigns each relay links to mobiles with orthogonal subchannels, leading to no interference between relays in the same cell. The other is the overlapped relay subchannel allocation (OVRSA) that maximizes spectral efficiency by allowing each relay to share same subchannels among them. Simulation results show that ORRSA provides slightly better cell throughput over OVRSA in multiple cell environment and both schemes of being investigated show cell throughput increases as the number of RSs per cell increases. Finally, it is observed that RS transmit power has little influence on the cell throughput performance.

Original languageEnglish
Title of host publication2010 The 2nd International Conference on Computer and Automation Engineering, ICCAE 2010
Pages95-99
Number of pages5
DOIs
Publication statusPublished - 2010
Event2nd International Conference on Computer and Automation Engineering, ICCAE 2010 - Singapore, Singapore
Duration: 2010 Feb 262010 Feb 28

Publication series

Name2010 The 2nd International Conference on Computer and Automation Engineering, ICCAE 2010
Volume2

Other

Other2nd International Conference on Computer and Automation Engineering, ICCAE 2010
CountrySingapore
CitySingapore
Period10/2/2610/2/28

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Computer Science Applications
  • Control and Systems Engineering

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