Efficient mapping of voice calls in wireless OFDMA systems

Yehuda Ben-Shimol; Eldad Chai; Itzik Kitroser

doi:10.1109/LCOMM.2006.060340

Efficient mapping of voice calls in wireless OFDMA systems

Yehuda Ben-Shimol
, Eldad Chai
, Itzik Kitroser

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

10 Scopus citations

Abstract

We address the problem of efficient resource allocation and its description for constant bitrate traffic (e.g., voice calls) in wireless OFDMA systems. In such systems resources are allo cated to users in a two-dimensional map. The representations of the allocated resources have to be broadcast, thus generating a substantial amount of overhead transmission. Here we present an efficient mapping and allocation representation algorithm that increase the total resource utilization by reducing the mapping overhead of the uplink frame for c onstant bitrate voice sessions. We use the IEEE802.16 standard for a system model and investigate by simulation the performance of the proposed solution. The results show that the required overhead can be reduced greatly.

Original language	English
Pages (from-to)	641-643
Number of pages	3
Journal	IEEE Communications Letters
Volume	10
Issue number	9
DOIs	https://doi.org/10.1109/LCOMM.2006.060340
State	Published - 1 Sep 2006

Keywords

Efficient mapping
Resource allocation
WiMAX

ASJC Scopus subject areas

Modeling and Simulation
Computer Science Applications
Electrical and Electronic Engineering

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10.1109/LCOMM.2006.060340

Cite this

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AU - Chai, Eldad

AU - Kitroser, Itzik

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N2 - We address the problem of efficient resource allocation and its description for constant bitrate traffic (e.g., voice calls) in wireless OFDMA systems. In such systems resources are allo cated to users in a two-dimensional map. The representations of the allocated resources have to be broadcast, thus generating a substantial amount of overhead transmission. Here we present an efficient mapping and allocation representation algorithm that increase the total resource utilization by reducing the mapping overhead of the uplink frame for c onstant bitrate voice sessions. We use the IEEE802.16 standard for a system model and investigate by simulation the performance of the proposed solution. The results show that the required overhead can be reduced greatly.

AB - We address the problem of efficient resource allocation and its description for constant bitrate traffic (e.g., voice calls) in wireless OFDMA systems. In such systems resources are allo cated to users in a two-dimensional map. The representations of the allocated resources have to be broadcast, thus generating a substantial amount of overhead transmission. Here we present an efficient mapping and allocation representation algorithm that increase the total resource utilization by reducing the mapping overhead of the uplink frame for c onstant bitrate voice sessions. We use the IEEE802.16 standard for a system model and investigate by simulation the performance of the proposed solution. The results show that the required overhead can be reduced greatly.

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KW - WiMAX

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JO - IEEE Communications Letters

JF - IEEE Communications Letters

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ER -

Efficient mapping of voice calls in wireless OFDMA systems

Abstract

Keywords

ASJC Scopus subject areas

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