Contention region allocation optimization in ieee 802.16 ofdma systems
Proceedings of the 10th ACM Symposium on Modeling, analysis, and simulation of wireless and mobile systems
On the Performance of Broadband Mobile Internet Access System
Wireless Personal Communications: An International Journal
The performance of relay-enhanced cellular OFDMA-TDD network for mobile broadband wireless services
EURASIP Journal on Wireless Communications and Networking - Special issue on broadband wireless access
A virtual DRC-based packet scheduling algorithm for cdma2000 1xEV-DO system
CIC'02 Proceedings of the 7th CDMA international conference on Mobile communications
An enhanced energy saving scheme in mobile broadband wireless access systems
WASA'06 Proceedings of the First international conference on Wireless Algorithms, Systems, and Applications
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In a two-way hybrid fiber coaxial (HFC) network, the headend broadcasts in downstream channels, whereas all stations share the upstream channels. Hence, collision occurs when multiple stations send their bandwidth requests in a minislot. The headend determines how many minislots to allocate to manage collisions. This paper proposes a minislot allocation (SOMA) algorithm to optimize minislot throughput based on statistical estimation. A time proportional scheme is adopted to estimate the number of new requests in the initial resolution process. In addition, the number of retry requests in the collision resolution process is estimated by looking up a predetermined table of the most likely number of requests (MLR). In addition, SOMA is modified to reduce the request access delay by relaxing its allocation policy in a specific situation. We use a self-similar traffic model for simulation and analysis to compare SOMA with the optimal bound and the 3-ary tree algorithm