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IEEE TRANSACTIONS ON SIGNAL PROCESSING, VOL. 55, NO. 2, FEBRUARY 2007 645 Performance of a Hybrid Receiver in the
 

Summary: IEEE TRANSACTIONS ON SIGNAL PROCESSING, VOL. 55, NO. 2, FEBRUARY 2007 645
Performance of a Hybrid Receiver in the
Downlink Multicell CDMA System
Md Habibul Islam, Mohammad Saquib, Member, IEEE, and Naofal Al-Dhahir, Senior Member, IEEE
Abstract--In this paper, we propose a novel low-complexity
receiver, namely, a hybrid receiver (HR) for the downlink of
a multicell code-division multiple-access (CDMA) system with
a transmit delay diversity transmission scheme. The proposed
receiver is designed by combining the merits of the decorrelating
receiver (DR) and the conventional receiver (CR). Unlike most
multiuser receivers, HR operates with the same information as
CR. For a target performance metric (e.g., bit error probability
(BEP) = 10 2), the reduced-complexity HR significantly out-
performs CR, DR, and minimum mean-square error (MMSE)
receiver with estimated channel information. We also compare the
performance of the reduced-complexity HR with a reduced-com-
plexity MMSE receiver, which slightly outperforms the former at
a price of higher complexity.
Index Terms--Code-division multiple-access (CDMA) system,
conventional receiver (CR), decorrelating receiver (DR), eigen-

  

Source: Al-Dhahir, Naofal - Department of Electrical Engineering, University of Texas at Dallas

 

Collections: Engineering