Optimized tuning of contention window for IEEE 802.11 WLAN
| Autor: | P Yogesh, B. Nithya, A. Justin Gopinath, Venkatesh Kameswaran |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Exponential backoff
Computer science business.industry Wireless network ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS Real-time computing Shared medium Grid Collision Wireless networks contention window collision rate backoff NS2 Scheduling (computing) Computer Science::Performance IEEE 802.11 Packet loss Computer Science::Networking and Internet Architecture business Computer network |
| Zdroj: | International Journal of Engineering, Science and Technology; Vol 9, No 2 (2017); 15-25 |
| ISSN: | 2141-2839 2141-2820 |
| DOI: | 10.4314/ijest.v9i2.2 |
| Popis: | In wireless networks, the size of Contention Window (CW) plays a vital role as it changes the throughput and delay of the networks considerably. The proposed Collision Ratio based BackOff (CRBO) algorithm uses collision ratio to suggest CW updation after the successful and unsuccessful transmission events. This leads to proper scheduling of transmission when more than one node attempt to capture the shared medium. The strength of the proposed algorithm is analyzed using NS2 simulator in terms of throughput, delay, packet loss and fairness. The simulation results prove that the proposed algorithm outperforms the existing algorithms under heavy and low traffic in random and grid topology.Keywords: Wireless networks, contention window, collision rate, backoff, NS2 |
| Databáze: | OpenAIRE |
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