TY - GEN
T1 - An adaptive time, frequency and code allocation for MC-CDMA systems
AU - Kim, Youngju
AU - Kwon, Taehoon
AU - Sohn, Kyung Ho
AU - Kim, Young Yong
AU - Hong, Daesik
PY - 2006
Y1 - 2006
N2 - In this paper, we propose an adaptive time, frequency and code allocation algorithm to guarantee heterogeneous quality of service (QoS) of users in multicarrier code division multiple access (MC-CDMA) systems. It is separated into two stages. First, time slots and frequency bands are allocated based on the proposed signal-to-noise ratio (SNR) threshold which reflects channel information and the QoS requirements of each user. Next, we propose a cost function which represents sum delay of users and then the codes are allocated by minimizing the cost function while guaranteeing the required bit error rate (BER) of users. Simulation results show that the proposed algorithm yields lower outage probability and higher throughput compared with the existing algorithms.
AB - In this paper, we propose an adaptive time, frequency and code allocation algorithm to guarantee heterogeneous quality of service (QoS) of users in multicarrier code division multiple access (MC-CDMA) systems. It is separated into two stages. First, time slots and frequency bands are allocated based on the proposed signal-to-noise ratio (SNR) threshold which reflects channel information and the QoS requirements of each user. Next, we propose a cost function which represents sum delay of users and then the codes are allocated by minimizing the cost function while guaranteeing the required bit error rate (BER) of users. Simulation results show that the proposed algorithm yields lower outage probability and higher throughput compared with the existing algorithms.
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U2 - 10.1109/ICC.2006.255325
DO - 10.1109/ICC.2006.255325
M3 - Conference contribution
AN - SCOPUS:42549168486
SN - 1424403553
SN - 9781424403554
T3 - IEEE International Conference on Communications
SP - 4369
EP - 4372
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 -