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Pre-select Diversity with the Aid of Downlink Beamforming in Indoor MC-CDMA System  

Pham, Van-Su (Communications and Electronics Lab(CEL), Information and Communications University(ICU))
Le, Minh-Tuan (Communications and Electronics Lab(CEL), Information and Communications University(ICU)
Linh Mai (Communications and Electronics Lab(CEL), Information and Communications University(ICU)
Yim, Mun-Hyuk (Communications and Electronics Lab(CEL), Information and Communications University(ICU)
Yoon, Gi-Wan (Communications and Electronics Lab(CEL), Information and Communications University(ICU))
Kim, Dong-Hyun (Communications and Electronics Lab(CEL), Information and Communications University(ICU))
Publication Information
Journal of information and communication convergence engineering / v.2, no.2, 2004 , pp. 71-75 More about this Journal
Abstract
In non-selective frequency environment, it is difficult to take the advantage of path diversity. In the literature, some methods have been proposed to solve the issue. This paper presents a new method to obtain the resolvable path in Indoor Multi-carrier Code Division Multiple Access (MC-CDMA) system by using downlink beam forming. With the aid of downlink beamforming, the most reliable path is found and chosen for the communication link. The new approach is evaluated in term of bit error rate (BER) and power consumption. The simulation results show that the new approach can get better BER performance. However, the cost of BER improvement is a small degradation in power reservation.
Keywords
Indoor channel; Smart Antenna; Diversity;
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