It is very challenging to implement the envisioned beyond 3G and 4G based on the conventional cellular network architecture. So a central controlled peer-to-peer network architecture is proposed, which is based on the cooperation of coexisting heterogeneous wireless networks. In the advocated architecture, the mobile terminal is capable of cellular reception of data which is then forwarded or s...

A pervasive network consists of heterogeneous devices with different computing, storage, mobility and connectivity properties working together to solve real-world problems. The emergence of wireless sensor networks has enabled new classes of applications in pervasive world that benefit a large number of fields. Routing in wireless sensor networks is a demanding task. This demand has led to a nu...

In order to prolong the network lifetime, energy-efficient protocols should be designed to adapt the characteristic of wireless sensor networks. Clustering Algorithm is a kind of key technique used to reduce energy consumption, which can increase network scalability and lifetime. This paper studies the performance of clustering algorithm in saving energy for heterogeneous wireless sensor networ...

Deployment of a global all IP wireless/mobile network is not a straightforward decision. Heterogeneous mobile networks combined with wireless “hot-spot” locations seams to be one of the most realistic early deployments. Commercial public wireless LAN solutions however offer proprietary location management capabilities compared to the traditional cellular networks. The increasing demands for het...

Data aggregation processes aim to reduce the amount of exchanged data in wireless sensor networks and consequently minimize the packet overhead and optimize energy efficiency. Securing the data aggregation process is a real challenge since the aggregation nodes must access the relayed data to apply the aggregation functions. The data aggregation security problem has been widely addressed in cla...

Machine to Machine Communication (M2M) is the automatic exchange of data in a heterogeneous wireless network, including devices or machines, without human interaction. MTC applications aim to provide quality to the machine with, in order to automated every life process. MTC devices are generally spread in a various area and should communicate with each other in various networks. LTE cellular ne...

In this research, 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. 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 wireless netwo...

We report on a new wireless interface type for the OSPF routing protocol that greatly improves performance in multihop wireless networks. In this paper, we describe how to adapt OSPF to adequately handle wireless networks in a scalable manner. Our simulation-based study first illustrates that the operation of legacy OSPF routers in mobile ad hoc network environments can generate prohibitive amo...

Advances in low-power electronics design and wireless communication have enabled the development of low cost, low power micro-sensor nodes. These sensor nodes are capable of sensing, processing and forwarding which have many applications such as underwater networks. In underwater wireless sensor networks (UWSNs) applications, sensors which are placed in underwater environments and predicted ena...