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To support IP-mobility of networks in motion, IETF proposed Network Mobility (NEMO) protocol that uses various signaling messages to ensure connectivity of the mobile nodes with the Internet. However, there has been no comprehensive cost analysis of mobility protocol entities that considers all possible costs. In this paper, we have developed analytical models to estimate total costs of key mobility...
Integrating nodes in a MANET to the Internet require either a connection to the Internet or they can connect to the Internet through the Internet gateways or servers. For the second case a node in a MANET has to find out the gateway or server to connect to the fixed nodes in the Internet. End to end packet delay and throughput are strongly dependent on the time needed to discover the gateways. A source...
Mobile networks can be formed in bus, train, aircrafts, satellites with a wide variety of on-board IP-enable devices and Network Mobility (NEMO) protocols are required to support uninterrupted services to ongoing sessions. Node mobility has a direct impact on the performance evaluation of various NEMO protocols. However, most of the analysis on mobility protocols used random waypoint mobility model...
The increased prevalence of mobile phones provides exciting opportunities for the growth of mobile banking (m-banking). This article reviews the emerging research literature on m-banking. It presents a classification framework for m-banking research based on 65 m-banking articles published between 2000 and mid-2010 in Information Systems (IS), technology innovation, management, and marketing journals,...
In this paper the authors have shown the ebb and flow of subscribers of different cell operators in Bangladesh based on their call rate, network, and other external facilities and suggests a new approach for the constituency of these operators to find out how all the operators can ensure customer satisfaction. Performance of a cellular system mainly depends on circuit merits (CM) of voice quality,...
Considering the rapid expansion of the usage of mobile communication devices in Bangladesh, development of technology and reduction in cost, well designed mobile based e-learning framework is expected to contribute significantly in educational development and thereby having a long term effect on poverty alleviation. This paper shows an M-Learning framework for Bangladesh.
As a promising broadband wireless technology, WiMAX has many salient advantages over such as: high data rates, quality of service, scalability, security and mobility. Many sophisticated authentication and encryption techniques have been embedded into WiMAX but it still facing a lot of challenging situations. This paper shows different security vulnerabilities found in IEEE 802.16e and gives possible...
Single carrier-frequency division multiple access (SC-FDMA) utilizes single carrier modulation at the transmitter and frequency domain equalization at the receiver. It has almost similar performance and essentially the same overall structure of an orthogonal frequency division multiple access (OFDMA) system with low peak to average power ratio (PAPR). Recently, the SC-FDMA has drawn great attention...
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