Design issues of uplink media access control (MAC) protocols for multimedia traffic over DS-CDMA systems
| Autor: | Lin Wang, W.G. Chambers, Abdol Hamid Aghvami |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
Channel allocation schemes
business.industry Code division multiple access Computer science ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS Computer Science Applications Scheduling (computing) Bandwidth allocation Packet switching Signal Processing Telecommunications link Media Technology Media access control Resource allocation Resource management Mobile telephony Electrical and Electronic Engineering Wideband business Computer network |
| Zdroj: | IEEE Transactions on Multimedia. 7:551-562 |
| ISSN: | 1520-9210 |
| DOI: | 10.1109/tmm.2005.846786 |
| Popis: | We propose an efficient uplink media access control (MAC) protocol for a variable spreading gain interference-limited wideband CDMA system. It can, with high spectral efficiency, support both real-time traffic like speech and video and also nonreal-time data traffic based on packet transmission. The schemes for power allocation, joint scheduling, and transmission rate adaptation for nonreal time data traffic are designed as integrated parts of the MAC, working together to improve the system performance in terms of capacity and delay. With these associated resource management mechanisms, the performances of the MAC protocol with two different channel-allocation methods for real-time traffic are numerically compared. One is demanding channel allocation, and the other is reserve channel allocation, in which a certain bandwidth is reserved for concurrent real-time traffic. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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