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In the past decade, there has been a huge proliferation of wireless local area networks (WLANs) based on the IEEE 802.11 WLAN standard. As 802.11 connectivity becomes more ubiquitous, multihop communications will be increasingly used for access point range extension and coverage enhancement. In this paper, we present a design for an IEEE 802. 11 -based(More)
IEEE 802.11 access point (AP) power saving is an important feature for solar/battery powered ESS mesh networks. In this paper we propose a media access control (MAC) protocol for power-aware multihop infrastructure, based on extensions to IEEE 802.11(e). A power saving mesh AP includes a network allocation map (NAM) in its beacon broadcasts which specifies(More)
Wireless LAN mesh networks are now being used to deploy Wi-Fi coverage in a wide variety of outdoor applications. In these types of networks, conventional WLAN mesh nodes must be operated using continuous electrical power connections. This requirement may often be very expensive, especially when the network includes expansive outdoor wireless coverage(More)
IEEE 802.11 WLANs are increasingly used to support real-time services such as voice and video. Reliable portable operation, however, is often difficult due to factors such as imperfect customer access point (AP) installation, unpredictable WLAN coverage, and unexpected co-channel interferers. In this paper we propose and investigate the use of IEEE 802.11(More)
In this paper we study admission control in IEEE 802.11-based ESS mesh networks. An analytical model is developed for studying the mesh network capacity. Based on this, a distributed connection admission control (CAC) scheme is proposed, which incorporates load balancing in selecting a mesh path for a new connection. Our results show that connection level(More)
In this paper, resource allocation and outage control are considered for solar-powered WLAN mesh networks. Solar-powered nodes are a very cost effective option in WLAN mesh deployments where continuous power sources are not practical. In such nodes, the cost of the solar panel and battery can be a significant fraction of the total and, therefore, reducing(More)
Multi-constraint quality-of-service routing will become increasingly important as the Internet evolves to support real-time services. It is well known however, that optimum multi-constraint QoS routing is computationally complex, and for this reason various heuristics have been proposed for routing in practical situations. Among these methods, those that(More)