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Performance evaluat...
Performance evaluation of CDMA reverse links with imperfect beamforming in a multicell environment using a simplified beamforming model
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Yu, J (author)
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Yao, Y D (author)
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- Molisch, Andreas (author)
- Lund University,Lunds universitet,Institutionen för elektro- och informationsteknik,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Electrical and Information Technology,Departments at LTH,Faculty of Engineering, LTH
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Zhang, J Y (author)
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(creator_code:org_t)
- 2006
- 2006
- English.
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In: IEEE Transactions on Vehicular Technology. - 1939-9359. ; 55:3, s. 1019-1031
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http://dx.doi.org/10...
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Abstract
Subject headings
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- Reverse link capacity of a direct-sequence code-division multiple-access (DS-CDMA) system in a multicell environment has been studied recently, and significant capacity improvements due to the use of beamforming have been observed. However, system performance with beamforming will be affected by several impairments, such as direction of arrival estimation errors, array perturbations, mutual coupling, and signal spatial spreads. In this paper, reverse link performance of CDMA systems with beamforming under these impairments (imperfect beamforming) is investigated. A simplified beamforming model is developed to evaluate the system performance in terms of user capacity, bit-error rates (BER), and outage probabilities. Both signal-to-interference-ratio-based power control and strength-based power control are considered in this paper. The capacity and BER degradations due to different impairments are shown, and outage probabilities under different power control schemes are examined.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Keyword
- mutual coupling
- code-division multiple access (CDMA)
- array perturbation
- beamforming
- power control
- spatial spread
- user capacity
Publication and Content Type
- art (subject category)
- ref (subject category)
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