Wireless Sensor Network (WSN) is a combination of homogeneous and heterogeneous sensor nodes which are physically deployed at different places. Heterogeneous WSM can be characterized with different parameters such as hardware resources, application, services, software platform and network. WSN are powerful technology, which is used to build up many applications in the era of technological devel...

A new vertical handoff decision algorithm is proposed to minimize the number of handoff in heterogeneous wireless networks, which comprise a number of wireless networks. In this paper we have proposed a multi criteria vertical handoff decision algorithm which will select the best available network with optimized parameter values (such as cost of network should be minimum) in the heterogeneous w...

The next generation mobile networks have the development trend of integration of cellular networks and Wireless Local Area Networks (WLAN).Considering the heterogeneous environment, Universal Mobile Telecommunication System (UMTS) of cellular technology and WLAN (over IEEE 802.11) are the most promising networks. Integration of these two networks facilitate user for the seamless communication. ...

In this paper, we first comment that the bandwidth consumption in the shortest path tree can be reduced in the heterogeneous wireless networks because the routing of the shortest path tree here is more flexible. The shortest path tree in the heterogeneous wireless networks consists of two parts. The first one is composed of the cell and the wireless technology chosen by each mobile host. The se...

A heterogeneous wireless network is characterized by the presence of different wireless access technologies that coexist in an overlay fashion.These wireless access technologies usually differ in terms of their operating parameters. On the other hand, Mobile Stations (MSs) in a heterogeneous wireless network are equipped with multiple interfaces to access different types of services from these ...

Seamless continuity is the main goal in fourth generation Wireless networks (FGWNs), to achieve this " HANDOVER " technique is used, when a mobile terminal(MT) is in overlapping area for service continuity, Handover mechanism are mainly used. In Heterogeneous wireless networks main challenge is continual connection among the different networks like WiFi,

Wireless Multimedia Sensor Networks (WMSNs) have entered the class of Wireless Sensor Networks to meet the multimedia requirements of new emerging applications, such as surveillance and telepresence. WMSNs commonly carry heterogeneous traffic with different Quality of Service (QoS) requirements. In this paper, the state of the art in QoS, protocols, Test beds, Simulators and the QoS requirement...

Wireless sensor networks (WSNs) contain multiple nodes of the same configuration and type. The biggest challenge nowadays is to communicate with heterogeneous nodes of different WSNs. To communicate with distinct networks, an application requires generic middleware. This middleware should be able to translate the requests for contrary WSNs. Most of the wireless nodes use the TinyOS or Contiki o...

The deployment of wireless communication technologies has led to significant research in the area of heterogeneous network management. Pervasive computing applications based on networks with both wired and wireless connections involve collections of heterogeneous and resource-limited devices, typically operated over ad-hoc, completely decentralized networks and without requiring dedicated infra...