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Multiparty routing protocols for resource constraint VHF Mobile Tactical Networks are studied by employing a modeling platform that integrates VHF tactical radio signal measurement data and practical network deployment scenarios. The standard approach of Simplified Multicast Forwarding based on the 2-hop neighborhood information and a typical alternative using 1-hop network clustering are compared...
At present, in most RFID systems, data acquisition and system configuration of mobile readers are based on site collection and then synchronization of data and configuration information with server by manual work. Because of extensive application of RFID systems, it may become the critical system of consumer payment, identification and many other service applications. However, data synchronization...
The possibility of connecting vehicles to fixed IP networks through roadside units (RSUs) or even access gateways is seen as a very interesting alternative to fully infrastructure-less VANETs. However, getting access to those fixed networks must be controlled and only authorized users should be able to use those RSUs or gateways. However, that authentication process incurs in a not-negligible delay...
Low-power personal area networks (LoWPANs) are still in its early stage of development, but the range of conceivable usage scenarios is tremendous. The numerous possible applications of Wireless Sensor Networks (WSNs) make obvious that mesh and multi-technology topologies will be prevalent in LoWPAN environments and mobility support will be a necessity. Mobility based communication can prolong the...
In a saturating telecommunications marketplace network operators want to rapidly deploy services with minimum capital investment, while maximizing on revenue from service usage by customers. One way to achieve this is to create interfaces for 3rd party service and content providers to offer their applications and services to users. Composing and bundling of these services will essentially create new...
Topology control aims to provide more spatial reuse and power conservation while keeping network's connectivity. However just a few number of efforts focused on the issue of topology control with mobility. Some of topology control algorithms (e.g. CEC) try to provide more energy conservation by sleeping the redundant nodes. This paper presents a sleep-based topology control algorithm, which is in...
Accompany with the e-commerce maturing and wireless network technique development, the research of mobile payment has become the tide and hotspot which bring us some new questions and challenges. Based on it, this paper researches the WAP, m-commerce and mobile payment mode.
Mobile ad-hoc networks, such as tactical networks, are frequently implemented using multiple subnets, or tiers, so that nodes in one tier can communicate to nodes in another tier only through gateways that can communicate in two of the tiers. The selection of the gateway nodes affects the robustness and performance of the connected subnets. This paper presents an algorithm for selecting gateways in...
With mobile terminals and wireless network environment constantly being improved, people are using mobile instant messaging (IM) products more frequently. We provide a novel design based on Jabber and FCAPS model to meet the rapidly growing and changing needs. Jabber provides an open, secure, real-time communication technology. Network management has always been a key aspect of communication networks...
Nowadays, inter-domain routing for MANETs draws increasing attention because of military and vehicular applications. The challenges in wireless, mobile inter-domain routing include dynamic network topology, intermittent connectivity, and routing protocol heterogeneity. The existing Border Gateway Protocol (BGP) is the de facto inter-domain routing protocol for the Internet. But BGP is not applicable...
With the rapid advancement of wireless network technologies, Mobile Instant Messaging (IM) has become a major application in the telecommunications industry. Firstly, this paper introduces recent research and development efforts in constructing mobile IM systems. Secondly, it advances a new service model and implementation mechanism based on Jabber/XMPP. The communication protocol of our system provides...
With the growing popularity of mobile communication equipment, as a bridge between communication technology and Internet, WAP technology will continue to be applied to the field of education. People will welcome a new era of learning, M-learning. As an important component of WAP technology, PUSH technology will play an important role in M-learning. WAP PUSH can not only greatly enhance the personalization...
Research on multi-channel MAC has been got much attention in wireless networks. Extensions of NS2 mobile node architecture (MNA) to support multi-channel MAC simulation are not adaptable to home gateway configurations. This paper proposes a versatile model architecture (VMA) to make simulation of home gateway available. Based on the previous works, VMA defines an entity of data link adaptor and is...
Connecting the wired and wireless networks particularly the Mobile ad hoc Network is interesting in real world situations due to its usefulness and practicality. Different mechanisms have been proposed to integrate MANETs and the Internet. These strategies differ in gateway discovery mechanism, cell switching criteria, ad hoc routing protocol.In this paper, Mobile-IP is integrated with Hierarchical...
A current challenge in interconnecting mobile ad hoc networks (MANETs) with backbone legacy networks is the lack of compatibility between different multicast routing protocols when using multiple gateways, due to differences in both forwarding semantics and implementations of the different protocols. We present designs and experimental results involving the interconnection of the simplified multicast...
In this article, we investigate a distributed clustering scheme and a cluster-based routing protocol for delay-tolerant mobile networks. The basic idea is to distributively group mobile nodes that have similar mobility pattern into a cluster, which can then interchangeably share their resources such as buffer space for overhead reduction and load balancing. Due to the lack of continuous communications...
Wireless mesh network (WMN) has become a popular access network architecture. But because of its multi-hop nature, co-channel interference and contention, the attainable capacity of a wireless node in a WMN is significantly less than the radio capacity. We propose a overlay architecture for a WMN, where a wireless-ring (WRing) is deployed over the regular mesh for carrying wireless mesh traffic only...
The support of ad-hoc networks as extension of infrastructure operator networks is increasing its strength in next generation networks, due to the increasing requirement for ubiquitous access of the users. This paper describes the ad-hoc network integration mobility architecture being developed inside the IST project Daidalos II. The main purpose of this architecture is to seamlessly support the movement...
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