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Ad-hoc wireless multi-hop network is communication network that consist of wireless nodes, placed together in an ad hoc manner, with minimal prior planning. All nodes have routing capability and forward data packets for other nodes in multi-hop fashion. Since many applications have QoS (quality of service) requirements such as delay and throughput, it is imperative that the wireless part of the communication...
In 4G systems, multimedia data will be streamed over various wireless networks to a multitude of portable devices. Hence, a large number of users will soon be able to access multimedia data at anytime, and from anywhere. However there exists a gap between the user requirements and the available systems. In this paper we present across layer technique called Interactive Video Switching (IVS) that is...
A combined base station association and power control problem is studied for the uplink of multichannel multicell cellular networks, in which each channel is used by exactly one cell (i.e., base station). A distributed association and power update algorithm is proposed and shown to converge to a Nash equilibrium of a noncooperative game. We consider network models with discrete mobiles (yielding an...
This research paper examines the standing of wireless technology in higher education institutes located in a number of regions around the world. In this paper 33 higher education institutes have been surveyed to find out the current level of wireless development. Institutes were surveyed on wireless services provided, the number access points, the coverage area, level of growth, the impact of installing...
This paper presents a medium access protocol for spread spectrum networks. We have focus on the use of the protocol in MANETs to increase the throughput of the network. We focus on the use of the protocol in mobile ad-hoc networks (MANETs) to increase the throughput of the network. The existing IEEE 802.11 MAC protocol uses spread spectrum technique at the physical layer. However, it uses the same...
In this paper, we present a simple approach for implementing a pulse analyzer for devices with limited computational power, such as mobile and wearable computers. The main purpose of this system is to continuously monitor the ECG of a person and detect any possible heart abnormalities. The idea is to break the required computation in two parts. The learning and model building part that requires high...
This century is experiencing an unprecedented growth in the number of mobile wireless users, applications, and wireless network access technologies. The future technology will provide communications and computing, where the users have network access, anytime, anywhere, and these applications shall be location-sensitive. To realize this vision, the network connectivity of private networks is required...
In this paper we present the design of a wireless, low-cost system that can be used to monitor physiological parameters, such as temperature, flex angle, pulse rate and oxygen saturation in the blood, of a human subject. The system consists of an electronic device which is worn as a hand glove, by an elderly or at-risk person. Using several sensors to measure different vital signs, the person is wirelessly...
This paper proposes a scheme for domain partition to achieve the tradeoff between load-balancing and inter-domain mobility to reduce the negative impact of the host mobility. The load-balancing scheme for domains includes: an initialization procedure to divide a mesh network into domains, and a load adjustment procedure to rebalance the traffic load of neighboring domains when required. Moreover,...
Caching frequently accessed data items on the mobile client is an effective technique to improve the system performance in mobile environment. Due to cache size limitations, the choice of cache replacement technique to find a suitable subset of items for eviction from cache becomes important. In this paper, we propose a new cache replacement policy for location dependent data in mobile environment...
Battery lifetime, a primary design constraint for mobile embedded systems, has been shown to depend heavily on the load current profile. This paper explores how scheduling guidelines from battery models can help in extending battery capacity. It then presents a 'battery-aware scheduling' methodology for periodically arriving task graphs with real time deadlines and precedence constraints. Scheduling...
This paper proposes a new heterogeneous multi-hop cellular IP (MCIP) network that integrates multi-hop communication with cellular IP. MCIP increases the coverage of the wireless network and improves the network robustness against adverse propagation phenomena by supporting communication in dead zones and areas with poor radio coverage. MCIP includes three components: location management, connection...
Mobile ad hoc networks are infrastructure-free, pervasive, ubiquitous and without any centralized authority. These unique characteristics, combined with security threats, demand solutions for securing ad hoc networks prior to their deployment in commercial and military applications. So far, the research in mobile ad hoc network has been primarily focused on routing and mobility aspects rather than...
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