Title :
Performance of multiuser detection for optical CDMA .II. Asymptotic analysis
Author :
Nelson, Laurie B. ; Poor, H. Vincent
Author_Institution :
Dept. of Electr. Eng., Minnesota Univ., Minneapolis, MN, USA
fDate :
12/1/1995 12:00:00 AM
Abstract :
For pt.I see ibid., vol.43. no.11, p.2803-2811 (1995). This paper presents characterizations of optimum multiuser detection in intensity-modulation direct-detection CDMA channels based on asymptotic analysis of simple bounds on optimum performance. Technical difficulties in applying large deviation techniques to the evaluation of asymptotic multiuser efficiencies are rigorously addressed. These same difficulties also lead to the derivation of conditions under which the linear multiuser detection achieves known-interference (hence, optimum) performance. Asymptotic analysis of the conventional correlation receiver, including derivation of the optimal decision threshold for on-off signaling formats, is also presented
Keywords :
code division multiple access; light interference; optical communication; optical correlation; optical modulation; optical signal detection; asymptotic analysis; asymptotic multiuser efficiencies; correlation receiver; direct-detection CDMA channels; intensity-modulation channels; interference; large deviation techniques; linear multiuser detection; on-off signaling formats; optical CDMA; optimal decision threshold; optimum multiuser detection; optimum performance bounds; Background noise; Error probability; H infinity control; Multiaccess communication; Multiple access interference; Multiuser detection; Optical noise; Optical receivers; Performance analysis; Signal analysis;
Journal_Title :
Communications, IEEE Transactions on
