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This revision specifies technical corrections and clarifications to IEEE Std 802.11 for wireless local area networks (WLANS) as well as enhancements to the existing medium access control (MAC) and physical layer (PHY) functions. It also incorporates Amendments 1 to 10 published in 2008 to 2011.
Wireless Sensor Networks (WSNs) have inherent and unique characteristics rather than traditional networks. They have many different constraints, such as computational power, storage capacity, energy supply and etc. Energy aware routing protocol is very important in WSN, but routing protocol which only considers energy has not efficient performance. Therefore considering other parameters beside energy...
Providing wireless service without spatial restriction has been realized due to rapid growth of IEEE 802.11 based wireless technologies. Recently, available bandwidth ("AB") estimation of the wireless medium has received much attention with the widespread use of real-time multimedia applications which requires certain level of QoS (Quality of Service) guarantees. In this paper, we propose...
In this paper, based on requirements of wireless Mesh network Multi-service and high speed, Is proposed based on more access control technology and the QoS control technology of new wireless resource allocation methods of the upward, To better solve the uplink bandwidths business concurrently, And both to delay and bandwidth requirements, improving the bandwidth of the system. Finally, simulation...
Wireless monitor system are widely used in recent years, but there are a few problems to solve, such as scalability and adaptability, and monitor system based on MANET has more difficulties because of multi-hop links and mutable channels. A new MANET monitor system based on Service-oriented architecture (MMS-SOA) is proposed to make the system easier to manage dynamically such as dynamic deployment,...
The success of future generation networks will be driven by the provision of ubiquitous, personalized services that can offer an enhanced user experience. In order to support the provision of more and better services to users, and at the same time deal with the complexity of the infrastructure of network operators (NOs), advanced management functionality needs to be introduced in wireless systems,...
The use of cellular networks for both voice and data communications is growing at a rapid pace throughout the world. Such growth was initially fueled by the need for mobile voice communication. However, with the advent of 2G networks and now with 3G networks, data services are quickly outpacing that of voice. Normally such growth is welcomed since it results in increased revenue for the wireless operator...
The information and communications technologies world is migrating towards the Future Internet (FI) era. Operators will have increased complexity to address in the FI era, compared to today, in the management of their infrastructure and services. This is due to the extended set of applications that should be supported and to the more options offered by the infrastructure. Cognitive management systems...
Wireless sensor networks have today emerged as a feasible infrastructure for healthcare applications. This paper addresses the non-trivial performance problems in contention-based wireless networks. We present a method for admission control in contention-based networks, implemented as a component of a performance management system. The test results show that admission control can improve the predictability...
In order to minimize the total transmit power in the downlink orthogonal frequency division multiplexing (OFDM) system, an adaptive resource management approach is proposed in this paper by considering that an application, such as real-time video and high quality music stream, can have different quality of service (QoS) requirements for different layers. When multiple layers are addressed in resource...
With the rapid development of network technology and network services, the users' requirements of network QoS are also improved. The traditional Active Queue Management(AQM) mechanisms are not adequate to provide QoS guarantee to multimedia video traffics effectively. To provide better quality of service to the multimedia applications in Mobile Ad Hoc Network(MANETs), whose resource is limited and...
As the emerging of 4G network, which is the convergence of fixed and mobile networks, there is a great need for the changing of traditional terminal devices to adaptively and intelligently meet the requirements of users. This paper proposes a novel framework and mechanism for self configuration of receivers that operate in heterogeneous environments and in 4G networks. The presented management framework...
With the popularity of distributed applications such as BitTorrent and Peer 2 Peer (P2P) networks, coupled with the increase in mobility of end user devices, there is a requirement for dynamic bandwidth management. This paper proposes a dynamic wireless bandwidth management system that allocates bandwidth dynamically to users as they authenticate with a wireless access point (AP). As users log into...
In the increasingly popular Voice over IP (VoIP) application domain, a well known issue relates to the management of available network bandwidth which is usually constrained by uplink capacities as well as access point limitations in the case of wireless connections. An approach that has long been advocated for controlling the admission of new connections based on bandwidth availability is Call Admission...
It has been shown that cooperative communication techniques have a great potential to increase the diversity in wireless relay networks and hence improve the Bit Error Rate (BER). When exploiting many users as relay nodes, a multi-antenna network called virtual-MIMO (Multiple Input Multiple Output) is set up. This special technique helps to solve the problem of transmission error occurrences when...
In this paper, we propose a Call Admission Control-based dynamic pricing scheme that aims at preventing congestion and maximizing the utilization of broadband wireless access systems. The main aim of our scheme is to provide monetary incentives to users to use the wireless resources efficiently and rationally; hence, allowing efficient bandwidth management at the admission level. By dynamically determining...
Power efficiency is one of the most important aspects in mobile networks. Much research has been done in saving power for mobile devices. This paper resents a power management scheme that maximizes energy saving in wireless ad hoc networks while still meeting the required quality of service (QOS) in an industrial work environment. Both the MAC payer and the physical layer conceptually have management...
The current network management makes the service provider shift from the backend to frontend in order to provide the user satisfactory service. It also leads to the researchers pay the more efforts on the study of integration of QoE and QoS, which provide a better analysis of the service management from the user perspective and from the network perspective respectively. In order to ensure the quality...
The following topics are dealt with: Ethernet simulation; signal processing theory; wireless communication; communication switching; routing; distributed communication; quality of service; peer-to-peer network; telecommunication security; VoIP; mobile networking; protocols; multimedia communication; multicast communication; network management; and reliability.
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