Joint rate and power adaptation for MC-CDMA over tempo-spectral domain
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Hamid, A, Hoshyar, R and Tafazolli, R (2008) Joint rate and power adaptation for MC-CDMA over tempo-spectral domain WCNC 2008: IEEE WIRELESS COMMUNICATIONS & NETWORKING CONFERENCE, VOLS 1-7 . 969 - 973.
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Abstract
This paper studies the area of link adaptation for multicarrier code division multiple access (MC-CDMA) radio interface and adapts the rate and transmission power jointly over temporal as well as spectral domains. on one side, frequency domain spreading lends a high degree of frequency diversity to MC-CDMA. On the other, it has been identified as the main hurdle when it comes to spectral domain rate allocation in MC-CDMA. This paper presents band based MC-CDMA (BB-MC-CDMA) architecture as an efficient scheme to practically realize the spectral domain rate allocation in MC-CDMA, without undergoing the drawbacks of other published techniques for this purpose. BB-MC-CDMA asks for the elimination of frequency interleaving, usually considered to be an essential ingredient of MC-CDMA. It also suggests an intelligent reduction in the spreading factor in a channel aware fashion. Furthermore, based on BB-MC-CDMA architecture, joint rate and power adaptation over time and frequency (JRPATF) has been shown to outperform the frequency domain power allocation only.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Science & Technology, Technology, Computer Science, Hardware & Architecture, Engineering, Electrical & Electronic, Telecommunications, Computer Science, Engineering, multi-carrier CDMA, MC-CDMA, transmit power allocation, dynamic rate adaptation, adaptive modulation, link adaptation, bandwidth allocation, adaptive frequency hoping |
| Divisions: | Faculty of Engineering and Physical Sciences > Electronic Engineering > Centre for Communication Systems Research |
| Related URLs: | |
| ID Code: | 1842 |
| Deposited By: | Mr Adam Field |
| Deposited On: | 27 May 2010 15:45 |
| Last Modified: | 16 Feb 2013 15:20 |
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