Accurate Analysis of Double-Weight Codes with an Arbitrary Maximum Cross-Correlation Value for Two-Chip-Power Optical CDMA

作者：Yuan Hsiao Hsin^*; Yang Guu Chang; Chang Cheng Yuan; Kwong Wing C

来源：IEEE Transactions on Communications, 2013, 61(6): 2488-2497.

DOI：10.1109/TCOMM.2013.043013.120645

• optical code division multiple access
• power control
• quality of service
• variable weight

Due to power restriction of some laser sources, the use of same power (per bit duration) in optical codes in incoherent optical code-division multiple-access multimedia networks with variable quality-of-services was previously studied. In those studies, the performance of double-weight codes with the maximum cross-correlation function lambda(c) = 1 was exactly analyzed, but an approximation was only applied to the codes with lambda(c) %26gt; 1 due to mathematical complexity. In this paper, an exact analytical model of double-weight codes with an arbitrary lambda(c) = 1 is formulated and validated with computer simulation. This general, more accurate performance model is also useful for power-sensitive applications, such as in-service monitoring and fiber-fault surveillance in optical networks and sensor-identification in fiber-sensor systems using optical codes for address or user identification.

• 出版日期2013-6