TY - GEN
T1 - Nonlinear power control for asynchronous fiber-optic CDMA networks
AU - Tarhuni, Naser G.
AU - Elmusratit, Mohamed S.
AU - Korhonen, Timo O.
PY - 2006
Y1 - 2006
N2 - In this paper we investigate the effect of photodetector nonlinearity on the optimum transmit power setting in an asynchronous optical CDMA network. Network impairments as well as thermal noise, shot noise and multiple access interference (MAI) are taken into account. Unlike in traditional systems, the optical detector generated shot noise adds a new self-interference normally not considered previously as part of the MAI. We formulate a centralized power control algorithm and propose novel, iterative, Nonlinear Optical Power Control (NOPC) algorithm. Furthermore, convergence properties of the proposed algorithm are studied. We prove that the iterative NOPC converges to a unique point. Solution feasibility is then formulated in terms of the employed network parameters, MAI and target SIR. Finally, simulation results are given illustrating the theoretical analysis.
AB - In this paper we investigate the effect of photodetector nonlinearity on the optimum transmit power setting in an asynchronous optical CDMA network. Network impairments as well as thermal noise, shot noise and multiple access interference (MAI) are taken into account. Unlike in traditional systems, the optical detector generated shot noise adds a new self-interference normally not considered previously as part of the MAI. We formulate a centralized power control algorithm and propose novel, iterative, Nonlinear Optical Power Control (NOPC) algorithm. Furthermore, convergence properties of the proposed algorithm are studied. We prove that the iterative NOPC converges to a unique point. Solution feasibility is then formulated in terms of the employed network parameters, MAI and target SIR. Finally, simulation results are given illustrating the theoretical analysis.
KW - Optical CDMA
KW - Optical power control
KW - Prime codes
UR - http://www.scopus.com/inward/record.url?scp=42549116231&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=42549116231&partnerID=8YFLogxK
U2 - 10.1109/ICC.2006.255201
DO - 10.1109/ICC.2006.255201
M3 - Conference contribution
AN - SCOPUS:42549116231
SN - 1424403553
SN - 9781424403554
T3 - IEEE International Conference on Communications
SP - 2782
EP - 2786
BT - 2006 IEEE International Conference on Communications, ICC 2006
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2006 IEEE International Conference on Communications, ICC 2006
Y2 - 11 July 2006 through 15 July 2006
ER -