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Coherent Detection for DS/CDMA System with M-Ary Orthogonal Modulation in Multipath Fading Channels
Sung-Jin KANG Min-Goo KANG Chang-Eon KANG Norihiko MORINAGA
IEICE TRANSACTIONS on Communications
Publication Date: 1999/07/25
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Mobile Communication
M-ary orthogonal modulation, DS/CDMA, channel estimation, coherent detection,
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In this letter, we propose the channel estimation technique in the uplink of a DS/CDMA system with M-ary orthogonal signaling over multipath fading channels. The channel estimation is carried out using the maximum correlator output of RAKE receiver. With the estimated channel parameters, the RAKE receiver can coherently combines the received multipath signals, resulting in a significant performace improvement. The hardware complexity of the proposed detection technique is slightly increased when compared to that of noncoherent detection.