Title :
A new scheduling scheme for the wideband TD-CDMA MAC protocol
Author_Institution :
Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
Abstract :
Multimedia services in a wideband time division-code division multiple access (TD-CDMA) wireless system have heterogeneous bit error rate (BER) and quality of service (QoS) requirements. In order to improve system throughput and guarantee QoS of multimedia traffic in such a wireless system, the medium access control (MAC) protocol demands a high performance scheduling scheme. In this paper a novel scheduling scheme is first proposed based on unequal power levels of the received signals. Then a MAC protocol is developed on the basis of the novel scheduling scheme. Simulation results show that the MAC protocol cannot only significantly improve the system throughput, but it can also guarantee QoS of multimedia traffic even if high system throughput is achieved
Keywords :
access protocols; broadband networks; cellular radio; code division multiple access; delays; error statistics; multimedia communication; packet radio networks; quality of service; telecommunication traffic; time division multiple access; BER; QoS guarantee; TD-CDMA wireless system; bit error rate; cellular radio; high performance scheduling; medium access control protocol; multimedia services; multimedia traffic; packet delay; quality of service; simulation results; system throughput; time division-code division multiple access; unequal power levels; wideband TD-CDMA MAC protocol; Access protocols; Bit error rate; Media Access Protocol; Multiaccess communication; Multimedia systems; Quality of service; Scheduling; Throughput; Traffic control; Wideband;
Conference_Titel :
Communications, 2001. ICC 2001. IEEE International Conference on
Conference_Location :
Helsinki
Print_ISBN :
0-7803-7097-1
DOI :
10.1109/ICC.2001.937382
