Performance analysis of joint diversity combining, adaptive modulation, and power control schemes

Handle URI:
http://hdl.handle.net/10754/561679
Title:
Performance analysis of joint diversity combining, adaptive modulation, and power control schemes
Authors:
Qaraqe, Khalid A.; Bouida, Zied; Alouini, Mohamed-Slim ( 0000-0003-4827-1793 )
Abstract:
Adaptive modulation and diversity combining represent very important adaptive solutions for future generations of wireless communication systems. Indeed, in order to improve the performance and the efficiency of these systems, these two techniques have been recently used jointly in new schemes named joint adaptive modulation and diversity combining (JAMDC) schemes. Considering the problem of finding low hardware complexity, bandwidth-efficient, and processing-power efficient transmission schemes for a downlink scenario and capitalizing on some of these recently proposed JAMDC schemes, we propose and analyze in this paper three joint adaptive modulation, diversity combining, and power control (JAMDCPC) schemes where a constant-power variable-rate adaptive modulation technique is used with an adaptive diversity combining scheme and a common power control process. More specifically, the modulation constellation size, the number of combined diversity paths, and the needed power level are jointly determined to achieve the highest spectral efficiency with the lowest possible processing power consumption quantified in terms of the average number of combined paths, given the fading channel conditions and the required bit error rate (BER) performance. In this paper, the performance of these three JAMDCPC schemes is analyzed in terms of their spectral efficiency, processing power consumption, and error-rate performance. Selected numerical examples show that these schemes considerably increase the spectral efficiency of the existing JAMDC schemes with a slight increase in the average number of combined paths for the low signal-to-noise ratio range while maintaining compliance with the BER performance and a low radiated power which yields to a substantial decrease in interference to co-existing users and systems. © 2011 IEEE.
KAUST Department:
Electrical Engineering Program; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Communication Theory Lab
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Journal:
IEEE Transactions on Communications
Issue Date:
Jan-2011
DOI:
10.1109/TCOMM.2010.111710.090600
Type:
Article
ISSN:
00906778
Sponsors:
This is an expanded version of work which was presented at the IEEE Vehicular Technology Conference (VTC Spring'2009), Barcelona, Spain, April 2009. This work is supported by Qatar National Research Fund (QNRF) grant through National Priority Research Program (NPRP) No. NPRP 29-6-7-4. QNRF is an initiative of Qatar Foundation.
Appears in Collections:
Articles; Electrical Engineering Program; Communication Theory Lab; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorQaraqe, Khalid A.en
dc.contributor.authorBouida, Zieden
dc.contributor.authorAlouini, Mohamed-Slimen
dc.date.accessioned2015-08-03T09:02:07Zen
dc.date.available2015-08-03T09:02:07Zen
dc.date.issued2011-01en
dc.identifier.issn00906778en
dc.identifier.doi10.1109/TCOMM.2010.111710.090600en
dc.identifier.urihttp://hdl.handle.net/10754/561679en
dc.description.abstractAdaptive modulation and diversity combining represent very important adaptive solutions for future generations of wireless communication systems. Indeed, in order to improve the performance and the efficiency of these systems, these two techniques have been recently used jointly in new schemes named joint adaptive modulation and diversity combining (JAMDC) schemes. Considering the problem of finding low hardware complexity, bandwidth-efficient, and processing-power efficient transmission schemes for a downlink scenario and capitalizing on some of these recently proposed JAMDC schemes, we propose and analyze in this paper three joint adaptive modulation, diversity combining, and power control (JAMDCPC) schemes where a constant-power variable-rate adaptive modulation technique is used with an adaptive diversity combining scheme and a common power control process. More specifically, the modulation constellation size, the number of combined diversity paths, and the needed power level are jointly determined to achieve the highest spectral efficiency with the lowest possible processing power consumption quantified in terms of the average number of combined paths, given the fading channel conditions and the required bit error rate (BER) performance. In this paper, the performance of these three JAMDCPC schemes is analyzed in terms of their spectral efficiency, processing power consumption, and error-rate performance. Selected numerical examples show that these schemes considerably increase the spectral efficiency of the existing JAMDC schemes with a slight increase in the average number of combined paths for the low signal-to-noise ratio range while maintaining compliance with the BER performance and a low radiated power which yields to a substantial decrease in interference to co-existing users and systems. © 2011 IEEE.en
dc.description.sponsorshipThis is an expanded version of work which was presented at the IEEE Vehicular Technology Conference (VTC Spring'2009), Barcelona, Spain, April 2009. This work is supported by Qatar National Research Fund (QNRF) grant through National Priority Research Program (NPRP) No. NPRP 29-6-7-4. QNRF is an initiative of Qatar Foundation.en
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.subjectadaptive modulationen
dc.subjectDiversity techniquesen
dc.subjectminimum selection generalized selection combiningen
dc.subjectperformance analysisen
dc.subjectpower controlen
dc.subjectRayleigh fading channelsen
dc.titlePerformance analysis of joint diversity combining, adaptive modulation, and power control schemesen
dc.typeArticleen
dc.contributor.departmentElectrical Engineering Programen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentCommunication Theory Laben
dc.identifier.journalIEEE Transactions on Communicationsen
dc.contributor.institutionDepartment of Electrical and Computer Engineering, Texas AandM University at Qatar, Education City, Doha, Qataren
dc.contributor.institutionDepartment of Electrical and Computer Engineering, Texas A and M University, College Station, TX, United Statesen
kaust.authorAlouini, Mohamed-Slimen
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