Cellular, laptop, tablet and handheld devices support WLAN technology. In addition to the spectral efficiency and security issues, power consumption is a vital issue in making the usage of these devices widespread. Efforts are underway in improving power conservation in those devices and thus increasing the duration between recharging the battery. Power consumption is mainly due to the transmis...

For extending of hot-spot of wireless LAN (WLAN), [1] proposes internetworking scheme between WLAN and mobile ad-hoc network (MANET), which employ the same layer-2 protocol with different mode. Compared to internetworking schemes between UMTS (Universal Mobile Telecommunications Systems) and WLAN [3-4], the scheme from [1] has relatively low overhead and latencies because WLAN and MANET are phy...

The need for coupling Heterogeneous Wireless Networks (HWNs) such as WLAN, WiMAX or UMTS, play a great role in developing towards fourth generation of wireless networks. Hence, the algorithms for these networks must be developed especially handoff algorithms to present a better performance in such heterogeneous networks. In this paper, several projects have different types of networks were impl...

The widespread popularity of Wireless Local Area Network (WLAN) is recognized as an effective approach to complementing cellular networks for the high data rate and cost effective connectivity delivered to mobile users. Efficient handover and offloading schemes for integrated WLAN and cellular networks, referred to as Heterogeneous Wireless Networks, have thus attracted lots of attentions from ...

This paper presents a general analysis for the performance of WLAN location determination systems. WLAN locations determination systems estimates the user location using software-based techniques in a WLAN environment. We present an analytical method for calculating the average distance error and probability of error of WLAN location determination systems. These expressions are obtained with no...

Full duplex (FD) wireless communication has an enormous prospect in near future. To leverage the FD benefit successfully, efficient medium access control (MAC) protocols are very crucial along with physical layer performance. Although a number of FD-MAC protocols were proposed earlier, most of them are not for wireless local area networks (WLANs). On the other hand, as still there are a lot of ...

Abslrucl-The current IEEE 802.11 Wireless LAN (WLAN) systems are unable to support real-time applications because the underlying contention-based MAC (Medium Access Control) protocol causes unpredictable delays. I n this paper, we present the implementation details of a new RT-WLAN device driver module, which extends t h e original Linux device driver for the popular Agere ORiNOCO cards to supp...

The current IEEE 802.11 Wireless LAN (WLAN) systems are unable to support real-time applications because the underlying contention-based MAC (Medium Access Control) protocol causes unpredictable delays. In this paper, we present the implementation details of a new RT-WLAN device driver module, which extends the original Linux device driver for the popular Agere ORiNOCO cards to support soft rea...

This paper proposes a novel Adaptive Stochastic Radio Access Selection (ASRAS) scheme for mobile users in heterogeneous Cellular-WLAN systems. In this scheme, a mobile user located in dual coverage area randomly selects WLAN with probability of ω when there is a need for downloading a chunk of data. The value of ω is optimised according to the status of both networks in terms of network load an...