Performance evaluation of CDMA reverse links with imperfect beamforming in a multicell environment using a simplified beamforming model
(2006) In IEEE Transactions on Vehicular Technology 55(3). p.1019-1031- Abstract
- 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... (More)
- 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. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/408375
- author
- Yu, J ; Yao, Y D ; Molisch, Andreas LU and Zhang, J Y
- organization
- publishing date
- 2006
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- mutual coupling, code-division multiple access (CDMA), array perturbation, beamforming, power control, spatial spread, user capacity
- in
- IEEE Transactions on Vehicular Technology
- volume
- 55
- issue
- 3
- pages
- 1019 - 1031
- publisher
- IEEE - Institute of Electrical and Electronics Engineers Inc.
- external identifiers
-
- wos:000237849600030
- scopus:33744520421
- ISSN
- 1939-9359
- DOI
- 10.1109/TVT.2006.874556
- language
- English
- LU publication?
- yes
- id
- 4086b145-3f1c-410d-b56a-885ce1cb8ef2 (old id 408375)
- date added to LUP
- 2016-04-01 11:43:23
- date last changed
- 2022-04-05 03:57:43
@article{4086b145-3f1c-410d-b56a-885ce1cb8ef2, abstract = {{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.}}, author = {{Yu, J and Yao, Y D and Molisch, Andreas and Zhang, J Y}}, issn = {{1939-9359}}, keywords = {{mutual coupling; code-division multiple access (CDMA); array perturbation; beamforming; power control; spatial spread; user capacity}}, language = {{eng}}, number = {{3}}, pages = {{1019--1031}}, publisher = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}}, series = {{IEEE Transactions on Vehicular Technology}}, title = {{Performance evaluation of CDMA reverse links with imperfect beamforming in a multicell environment using a simplified beamforming model}}, url = {{http://dx.doi.org/10.1109/TVT.2006.874556}}, doi = {{10.1109/TVT.2006.874556}}, volume = {{55}}, year = {{2006}}, }