Theoretical framework for quality of service analysis of differentiated traffic in 802.11 wireless local area networks

2012 ◽  
Vol 6 (15) ◽  
pp. 2326-2334 ◽  
Author(s):  
S. Ghazanfari-Rad ◽  
B. Sansò ◽  
J.-F. Frigon
Keyword(s):  
Quality Of Service ◽  
Local Area Networks ◽  
Local Area ◽  
Theoretical Framework ◽  
Wireless Local Area Networks

QoSiLAN - A Heterogeneous Approach to Quality of Service in Local Area Networks

2010 ◽  
Author(s):  
Christopher Köhnen ◽  
Christian Überall ◽  
Veselin Rakocevic ◽  
Muttukrishnan Rajarajan ◽  
Rudolf Jäger
Keyword(s):  
Quality Of Service ◽  
Local Area Networks ◽  
Local Area

scholarly journals AP Deployment Research Based on Physical Distance and Channel Isolation

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Dangui Yan ◽  
Chengchang Zhang ◽  
Honghua Liao ◽  
Lisheng Yang ◽  
Ping Li ◽  
...  
Keyword(s):  
Local Area Networks ◽  
Access Point ◽  
Local Area ◽  
Physical Distance ◽  
Mutual Interference ◽  
Optimal Location ◽  
Wireless Local Area Networks ◽  
Position Information ◽  
Penalty Factor

Aiming at the problem of inefficiency of wireless local area networks (WLAN) access point (AP) deployment in urban environment, a new algorithm for AP deployment based on physical distance and channel isolation (DPDCI) is proposed. First, it detects the position information of deployed APs and then calculates the interference penalty factor combined with physical distance and channel isolation, and finally gets the optimal location and channel of the new AP through the genetic algorithm. Comparing with NOOCA algorithm and NOFA-2 algorithm, the results of numerical simulation show that the new algorithm can minimize the mutual interference between basic service sets (BSS), can ensure the maximum of throughput based on quality of service (QoS) in BSS, and can effectively improve the system performance.

scholarly journals Improved Association and Disassociation Scheme for Enhanced WLAN Handover and VHO

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Sungjin Shin ◽  
Donghyuk Han ◽  
Hyoungjun Cho ◽  
Jong-Moon Chung
Keyword(s):  
Mobile Devices ◽  
Local Area Networks ◽  
Access Point ◽  
Local Area ◽  
Vertical Handover ◽  
Base Station ◽  
Wireless Local Area Networks ◽  
Received Signal Strength Indicator ◽  
Wireless Protocol

The number of mobile devices and wireless connections is significantly increasing. Among many wireless protocol types, wireless local area networks (WLANs) are expected to support a significant number of devices. Due to this reason, effective and efficient handover (HO) and vertical handover (VHO) support for WLAN mobile devices is important. A significant improvement in quality of service (QoS) can be obtained by reducing the association and disassociation interruption time for user equipment (UE) servicing real-time applications during WLAN HO and VHO operations. Based on this focus, this paper investigates the problem of using only the received signal strength indicator (RSSI) in HO and VHO decisions, which is what the current IEEE 802.11 based WLAN systems use. Experimental results presented in this paper demonstrate that only using the RSSI results in significant interruption time during HO to another WLAN access point (AP) or to a cellular base station during VHO. Therefore, in this paper, an improved association and disassociation scheme that can reduce the data interruption time (DIT) and improve the throughput performance is proposed.

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