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    초록·키워드

    In this paper, we examine the simulation performances for the beamformer-RAKE 2D spatial-temporal array receiver designed for 1.2288 Mcps narrowband CDMA system, which is implemented in ETRI's CA³TS CDMA adaptive antenna array testbed system [1]. First, so called a pseudo ray tracing channel model is introduced for intended simulations with multipaths and fading in space and time domain. Subsequently, a new spatial-temporal array receiver is introduced. Modeling the signals considered and defining both the element SINR and the SINR after beamforming, some number of scenarios are designed and tested to illustrate the correct operation of the proposed beamformer-RAKE spatial-temporal array receiver in multipath environments. Finally, some number of simulation test scenarios with many co-channel interferences and fading are designed and tested to illustrate the correct operation of the proposed spatial-temporal array receiver as well as its improvement in BER performance due to the exploitation of the spatial-temporal processing for the received signals.

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      UCI(KEPA) : I410-ECN-0101-2009-569-013221604