Abstract
A mobile multimedia CDMA system with multiple links between a user and radio ports is introduced in this paper. We propose a centralized reservation access control scheme with transmission scheduling and allocation algorithm supporting various types of multimedia traffic. Two types of allocation algorithms, a local and a global algorithm, are also proposed. The allocation algorithms allocate a set of ports to configure multiple radio links and transmission slot / power to each scheduled transmission requests. We evaluate the performance of the proposed CDMA system and control algorithms, and compare it with a distributed random access CDMA system and a dynamic TDMA system. It is shown that the global algorithm is the best and the random transmission method the worst in performance. It is also noted that the local algorithm performs well compared with the global algorithm. The proposed CDMA system shows better performance than the TDMA system in terms of delay and throughput.
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