This paper presents the shaped reflector antenna by using backscattering technique to achieve the completely broad-beam radiation pattern. The radiation synthesis method for shaped reflector that has to illuminate a predefined circular area are presented by using a variety of discretization of elementary geometrical functions such as, triangular, quadratic, circular, guassian, cosine, squared c...

Now a day’s several organizations are moving their LAN foundation towards remote LAN frame work. The purpose for this is extremely straight forward multinational organizations needs their clients surprise about their office surroundings and they additionally need to make wire free environment in their workplaces. Much IT equipment moved on Wireless for instance all in one Pc portable workstatio...

This article explains the process of standardization in the IEEE Standards Association.It emphasizes topics relevant to the wireless engineer,particularly the IEEE 802 LAN MAN Standards Committee and its three projects defining a Wireless Internet infrastructure. This article was published as “IEEE Standardization for the Wireless Engineer, Roger B. Marks, IEEE Microwave Magazine 2, pp. 16-26, ...

We introduce a newsgathering system that features high mobility and wide-area coverage: Mobile Broadcasting Video (MBV) system. According to the original design concept, this system’s transmission channels provide increased mobility and wide area coverage, utilizing wireless LAN and low-orbit satellite technology. Also this system provides audiovisual quality that is comparable to current digit...

Researchers and developers have long faced a fundamental tension between the experimental realism of wireless testbeds on one hand, and the control and repeatability of simulation on the other hand. This thesis introduces physical layer wireless network emulation – a new approach to wireless network experimentation that balances the stark tradeoff of traditional alternatives by enabling both re...

This paper describes a method for the localization of wireless mobile clients in multistory buildings using a wireless LAN system. The method uses public wireless LAN access points for users and robots that are settled at many places in a multistory building. Data on the physical position of personal electronic devices or mobile robots are important in information services and robot application...

Wireless technology has developed a significant part of communication and for the data transmission. Wireless LAN effectively fulfills the necessities within buildings and campus environments. Emerging security measures for the WLAN is a foremost issue when compared to the security features of LAN. Wireless access points mainly fall into three categories: minor business and home networks, enter...

Wireless network devices are equipped with multiple access technologies like UMTS and Wireless LAN. The handover between the technologies has been widely studied in literature. Several of these research papers build their handover mechanisms on top of existing protocols like Mobile IP. The protocols however, operate on the network layer and only react on link layer changes. Consequently, a seam...