Cross-layer Packet-dependant OFDM Scheduling Based on Proportional Fairness | ||
| AUT Journal of Modeling and Simulation | ||
| مقاله 4، دوره 44، شماره 1، 2012، صفحه 27-39 اصل مقاله (1002.93 K) | ||
| نوع مقاله: Research Article | ||
| شناسه دیجیتال (DOI): 10.22060/miscj.2012.23 | ||
| نویسندگان | ||
| Hua Hou* 1؛ Gen- xuan2 | ||
| 1Corresponding Author Hua Hou is with school of Information Science and Electrical Engineering, Hebei University of Engineering, Handan , P.R.China ( Email: hh110040@gmail.com). | ||
| 2Gen-xuan Li is with School of Information Science and Electrical Engineering, Hebei University of Engineering, Handan , P.R.China ( Email: hh110040@gmail.com ). | ||
| چکیده | ||
| This paper assumes each user has more than one queue, derives a new packet-dependant proportional fairness power allocation pattern based on the sum of weight capacity and the packet’s priority in users’ queues, and proposes 4 new cross-layer packet-dependant OFDM scheduling schemes based on proportional fairness for heterogeneous classes of traffic. Scenario 1, scenario 2 and scenario 3 lead respectively artificial fish swarm algorithm, self-adaptive particle swarm optimization algorithm and cloud adaptive particle swarm optimization algorithm into sub-carrier allocation in packet-dependant proportional fairness scheduling, and use respectively new power allocation pattern, self-adaptive particle swarm optimization algorithm and population migration algorithm to allocate power. Scenario 4 uses greedy algorithm concerning fairness to allocate sub-carriers, and uses new power allocation pattern to allocate power. Simulation indicates scenario 1,scenario 2 and scenario 3 raise the system’s total rate on the basis of undertaking the fairness among users’ rates and average packet delay; scenario 4 not only meets users’ rates and average packet delay demands, but also improve the fairness among users’ rates. | ||
| کلیدواژهها | ||
| Multi-user OFDM؛ Scheduling؛ Proportional fairness؛ Swarm Intelligence Algorithm؛ Cross-layer؛ Resource allocation؛ Particle swarm algorithm؛ Population migration algorithm؛ Artificial fish swarm algorithm؛ Packet-dependant | ||
| مراجع | ||
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