Title :
Fractionally spaced linear joint detection for multitone CDMA systems
Author :
van de Wiel, O. ; Vandendorpe, L.
Author_Institution :
Commun. & Remote Sensing Lab., Univ. Catholique de Louvain, Belgium
fDate :
11/1/1997 12:00:00 AM
Abstract :
We consider a fractionally spaced linear joint detector (FS-LIJD) for multitone code-division multiple-access (CDMA) systems. We first derive the structure of the receiver for a minimum mean-squared error (MMSE) criterion. Then, we exactly evaluate the bit-error rate (BER) achieved by this detector for binary phase-shift keying (BPSK) modulation in steady-state conditions. We consider an asynchronous scenario, where the signal of each user propagates over a two-path channel. The resistance of the detector against timing errors is studied, and the resistance against a near-far scenario is also demonstrated
Keywords :
code division multiple access; coding errors; error statistics; least mean squares methods; multipath channels; phase shift keying; probability; radiofrequency interference; signal detection; spread spectrum communication; timing; BER; BPSK; MMSE; asynchronous system; binary phase-shift keying; bit-error rate; code division multiple access; fractionally spaced linear joint detection; minimum mean-squared error; multitone CDMA systems; near-far scenario; receiver structure; steady-state conditions; timing errors; two-path channel propagation; AWGN; Bit error rate; Channel estimation; Detectors; Intersymbol interference; Multiaccess communication; Multiple access interference; Phase detection; Phase shift keying; Steady-state;
Journal_Title :
Vehicular Technology, IEEE Transactions on
