A Downlink Mapping algorithm for two-level requests in IEEE 802.16e systems under AMC mode

Zi Yang Yang, Yaw Wen Kuo, Tsern-Huei Lee

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

Abstract

This paper proposes a downlink mapping algorithm for two-level requests in Orthogonal Frequency Division Multiple Access based IEEE 802.16e systems under the Adaptive Modulation and Coding (AMC) mode by which the modulation and coding scheme (MCS) of a user may be different for available subchannels. Given a set of requests each with two priorities, the proposed algorithm efficiently allocates a two-dimensional (time and frequency) burst with a suitable MCS to each user to maximize the system throughput with service differentiation. Simulation results show that the proposed algorithm outperforms the Efficient Downlink Mapping Allocation (EDMA) algorithm [5] in terms of the throughput of high priority data, but slightly sacrifice in overall throughput. The proposed algorithm can improve up to 98.8% more the average allocated ratio of urgent data than the EDMA.

Original languageEnglish
Title of host publication2013 IEEE International Conference of IEEE Region 10, IEEE TENCON 2013 - Conference Proceedings
DOIs
StatePublished - 1 Dec 2013
Event2013 IEEE International Conference of IEEE Region 10, IEEE TENCON 2013 - Xi'an, Shaanxi, China
Duration: 22 Oct 201325 Oct 2013

Publication series

NameIEEE Region 10 Annual International Conference, Proceedings/TENCON
ISSN (Print)2159-3442
ISSN (Electronic)2159-3450

Conference

Conference2013 IEEE International Conference of IEEE Region 10, IEEE TENCON 2013
CountryChina
CityXi'an, Shaanxi
Period22/10/1325/10/13

Keywords

  • AMC
  • Burst mapping
  • IEEE 802.16e
  • OFDMA

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