TY - JOUR
T1 - Spreading code assignment in an ad hoc DS-CDMA wireless network
AU - Wu, Yunnan
AU - Zhang, Qian
AU - Zhu, Wenwu
AU - Kung, S. Y.
PY - 2002
Y1 - 2002
N2 - In this paper, we examine the problem of optimal spreading code assignment in an ad hoc DS-CDMA wireless network. The problem is formulated in two ways, with the optimization criteria being minimizing the congestion measure, and minimizing the total consumed power, respectively. Either formulation is converted to an optimization of the weighted total squared cross-correlation (WTSC), after some mathematical simplification. We then devise algorithms to reach some local minima of the optimization. Simulation results show significant reduction in the network congestion measure and power consumption, compared with random code allocation.
AB - In this paper, we examine the problem of optimal spreading code assignment in an ad hoc DS-CDMA wireless network. The problem is formulated in two ways, with the optimization criteria being minimizing the congestion measure, and minimizing the total consumed power, respectively. Either formulation is converted to an optimization of the weighted total squared cross-correlation (WTSC), after some mathematical simplification. We then devise algorithms to reach some local minima of the optimization. Simulation results show significant reduction in the network congestion measure and power consumption, compared with random code allocation.
UR - https://openalex.org/W1959901585
UR - https://www.scopus.com/pages/publications/0036279802
U2 - 10.1109/ICC.2002.997402
DO - 10.1109/ICC.2002.997402
M3 - Journal Article
SN - 0536-1486
VL - 5
SP - 3066
EP - 3070
JO - IEEE International Conference on Communications
JF - IEEE International Conference on Communications
ER -