Title :
A simulation study of Block Acknowledgements and TXOPs under varying channel conditions
Author :
Faruqui, Rashid ; Ghani, Sayeed
Author_Institution :
Inst. of Bus. Adm., Bahria Univ., Karachi
Abstract :
The acknowledgment schemes of legacy 802.11 do not support optimized performance due to high overheads. The performance further deteriorates for real time traffic. Transmission opportunity (TXOP) mechanism and Block Acknowledgements (Acks) were later introduced to facilitate improved performance in 802.11e. In this paper we aim to prove the effectiveness of both TXOP and Block Ack and analyze their effects under varying channel conditions through simulations carried out in NS-2.
Keywords :
wireless LAN; IEEE 802.11e; TXOP; block acknowledgement; transmission opportunity; wireless LAN; Access protocols; Analytical models; Automatic repeat request; Bit error rate; Delay effects; Media Access Protocol; Modulation coding; Quality of service; Throughput; Traffic control; 802.11e; Block acknowledgement schemes; Transmission opportunity; component;
Conference_Titel :
Multitopic Conference, 2008. INMIC 2008. IEEE International
Conference_Location :
Karachi
Print_ISBN :
978-1-4244-2823-6
Electronic_ISBN :
978-1-4244-2824-3
DOI :
10.1109/INMIC.2008.4777750
