A Novel IEEE 802.11e-Based QoS Protocol for Voice Communications over WLANs

2006 ◽  
pp. 224-235 ◽  
Author(s):  
José Villalón ◽  
Pedro Cuenca ◽  
Luis Orozco-Barbosa
Keyword(s):  
Ieee 802.11E ◽  
Voice Communications

scholarly journals VoIP Call Admission Control in WLANs in Presence of Elastic Traffic

2017 ◽  
Vol 2 (4) ◽  
pp. 322 ◽  
Author(s):  
Boris Bellalta ◽  
Michela Meo ◽  
Miquel Oliver
Keyword(s):  
Rate Control ◽  
Call Admission Control ◽  
Control Algorithm ◽  
Ieee 802.11E ◽  
Queuing Model ◽  
Promising Alternative ◽  
Elastic Traffic ◽  
Voice Communications ◽  
Bulk Service ◽  
Rate Control Algorithm

VoIP service over WLAN networks is a promising alternative to provide mobile voice communications. However, several performance problems appear due to i) heavy protocoloverheads, ii) unfairness and asymmetry between the uplink and downlink flows, and iii) the coexistence with other traffic flows. This paper addresses the performance of VoIP communications with simultaneous presence of bidirectional TCP traffic, and shows how the presence of elastic flows drastically reduces the capacity of the system. To solve this limitation a simple solution is proposed using an adaptive Admission and Rate Control algorithm which tunes the BEB (Binary Exponential Backoff) parameters. Analytical results are obtained by using an IEEE 802.11e user centric queuing model based on a bulk service M=G[1;B]=1=K queue, which is able to capture the maindynamics of the EDCA-based traffic differentiation parameters (AIFS, BEB and TXOP). The results show that the improvement achieved by our scheme on the overall VoIP performance is significant.

A Fast Architecture Exploration Method for High Throughput IEEE 802.11e MAC Implementation Using SystemC

2010 ◽  
Vol E93-B (10) ◽  
pp. 2833-2836
Author(s):  
Sung-Rok YOON ◽  
Min Li HUANG ◽  
Sangho SEO ◽  
Hiroshi OCHI ◽  
Sin-Chong PARK
Keyword(s):  
High Throughput ◽  
Ieee 802.11E ◽  
Architecture Exploration

Traffic Aware QoS Scheduling for IEEE 802.11e HCCA WLAN

2013 ◽  
Vol E96.B (2) ◽  
pp. 639-642
Author(s):  
Kang Yong LEE ◽  
Jinsul KIM ◽  
Kee Seong CHO ◽  
Won RYU ◽  
Ho-Jin LEE
Keyword(s):  
Ieee 802.11E

scholarly journals Performance Analysis of IEEE 802.11e Contention-Based Channel Access

2004 ◽  
Vol 22 (10) ◽  
pp. 2095-2106 ◽  
Author(s):  
Z. Kong ◽  
D.H.-K. Tsang ◽  
B. Bensaou ◽  
D. Gao
Keyword(s):  
Performance Analysis ◽  
Ieee 802.11E ◽  
Channel Access
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