R&D on new generation mobile network has attracted a growing interest over the world on the background of rapid market growth for 2nd and 3rd generation cellular networks and wireless LANs/MANs. The National Institute of Information and Communications Technology (NICT) started the New Generation Mobile Network Project in April 2002, and has developed fundamental technologies to enable seamless ...

Wireless LANs are everywhere these days from home to large enterprise corporate networks due to the ease of installation, employee convenience, avoiding wiring cost and constant mobility support. However, the greater availability of wireless LANs means increased danger from attacks and increased challenges to an organization, IT staff and IT security professionals. This paper discusses the vari...

Nowadays wireless networks are becoming important in personal and public communication andgrowing very rapidly. Similarly, Software Dened Network (SDN) is an emerging approach to over-come challenges of traditional networks. In this paper, a new SDN-based framework is proposedto ne-grained control of 802.11 Wireless LANs. This work describes the benets of programmableAcc...

The theoretical performance of CSMA/CA, as it is used in IEEE802.11 wireless LANs, is investigated in this paper. We adopt and modify a previously presented analytical approach for CSMA/CA protocols in wireless LANs with finite number of stations and find closed-form equations for throughput and delay. The presented numerical results highlight the characteristics of both CSMA/CA methods and def...

It is well known that TDD mode wideband CDMA is particularly suited for wireless local area networks (LANs). In this paper a medium access control (MAC) protocol is proposed for wireless multimedia LANs that are based on TDD mode wideband CDMA. In order to minimize interference experienced by a packet and to satisfy bit error rates (BERs) of multimedia traffic, a minimum-power allocation algori...

Although Wireless LANs market has grown tremendously in last few years, their enterprise deployments have been fairly limited. From manual site survey process to ensure signal coverage at all locations, to the well known security issues in original standards, there have been several deterrents to a widespread enterprise deployments of wireless LANs. In this paper we attempt to clarify three of ...