Abstract
Reverse link capacity of a direct-sequence code-division multiple-access (DS-CDMA) system in a multicell environment with both perfect and imperfect beamforming has been studied recently. In the practical implementation, the design of antenna array may be constrained by the available space or the number of antennas. In this paper, we investigate the maximum reverse link capacity of CDMA systems using different types of arrays, including linear, circular, and rectangular arrays, with a fixed size. The CDMA capacity for different types of arrays with fixed number of antennas is also examined. The capability of antenna arrays to combat the impairments of beamforming, such as arrival angle estimation errors and angular spreads, is closely related to their geometries. The impact of array geometry on system performance considering beamforming impairments is also examined and illustrated through numerical results.
Original language | English |
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Pages (from-to) | 182-186 |
Number of pages | 5 |
Journal | IEEE Vehicular Technology Conference |
Volume | 61 |
Issue number | 1 |
State | Published - 2005 |
Event | 2005 IEEE 61st Vehicular Technology Conference -VTC 2005 - Spring Stockholm: Paving the Path for a Wireless Future - Stockholm, Sweden Duration: 30 May 2005 → 1 Jun 2005 |