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Research conducted at Morgan State University (MSU) has proposed a new approach for modeling and managing Quality of Service (QoS) in a cellular and ad-hoc mixed wireless network. This paper focuses on two key areas. It first introduces the “power” performance measure to model and manage the QoS requirements for wireless nodes with time critical applications as a function of the traffic level. It...
The following topics are dealt with: ad hoc and sensor networks; heterogeneous wireless, WLAN, and mobile networks; measurement performance analysis; network architectures, protocols, and routing; network management; and network security.
Providing security and privacy to users are critical in wireless mesh networks (WMNs). In this paper, a distributed security architecture is introduced to manage the mesh clients and a secure routing scheme that preserves the privacy of the end-users is proposed. In order to maximize routing efficiency, key indexing is used and symmetric cipher is employed in most part of the proposed scheme to reduce...
This paper presents the issues related to efficient transmission of encoded video (such as H.264) over wireless links using the TFRC protocol. It proposes a novel mechanism that utilizes cross-layer approaches for adaptation of the power transmission level of the sender and feedback information regarding the wireless connection status from the receiver for improved transmission statistics and therefore...
There has been much recent interest in protocol design for wireless networks based on maximizing a network utility function. A significant advance in recent years is the observation that a decomposition of the Lagrangian suggests an approach where transmissions are scheduled to minimize backpressure. However, a satisfactory Medium Access Control (MAC) protocol that can realize such a scheduling algorithm...
The advances on wireless mesh networks are shifting the communications paradigm, where users can benefit from their cooperation to exchange information and make use of the spectrum space, forming wireless neighbourhood communities where resources are shared and services are distributed. This paper presents a modular cross-layer community management architecture, which considers that communities are...
The following topics were dealt with: electromagnetic compatibility; mobile wireless networks; QoS; ad hoc networks; RFID; protocols; multimedia system; virtual reality; signal processing; coding; telecommunications services; network operations and management; information infrastructure and security; communication theory; communication software.
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