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WLAN 802.11s mesh network investigation
Nowadays mobile and ultra mobile devices able to maintain a wireless connection with each other and to form a client mesh network are becoming more and more spread. The basic problem lies in optimal bandwidth sharing between a management traffic and a user one. On one hand it is necessary to provide effective routing and quick reaction on unit porting/disconnection, on the other hand a high-level service of payload data transfer is extremely important too. There is 802.11s standard draft. We are going to implement simulation model of several 802.11s features. Our goal is: to find and explain 802.11s standard's limits.
Only client mesh networks without any infrastructure elements such as servers, hubs, access points etc are being considered.
We'll analyze only portable battery powered devices for ad hoc mesh networking. The main investigation directions are:
- Network/connection constancy in terms of power save mode;
- Deep and light sleep possibility;
- Beacon interval value Impaction to network performance with different power save schemes;
We are going to use NS2 simulation framework (or probably, other network simulator)
January/February 2009: 802.11s standard draft analysis
February/March 2009: Giving experience witn NS2 and WLAN modules
March 2009: Improving simulator trace output
April/May 2009: Simulation Model for beacon feature
Autumn 2009: Public report on FRUCT
Winter 2009: Devices' sleep possibilities model
Spring 2010: Public report on FRUCT
We are going to create models for new features and revisions of 801.11s standard. One of long-term research directions is an adequate mesh networks model development which would take into account the particular qualities of modern wireless devices and ways of their usage (content exchange, teleconferences, games etc). In the context of model development it is intended to observe current states of algorithms, standards and routing protocols realizations for Ad Hoc and Mesh networks. The model should include:
- QoS control,
- dynamic topology reconfiguration,
- management traffic volume control,
- load balancing.
Project homepage on OSLL site is http://osll.spb.ru/projects/show/ns2