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In this paper we propose a generic architecture for a small powerful mobile computer that relies on network and its servers for majority of its activities. Since the network is located in middle of this architecture, we discuss the feasibility and capacity of using the network as a temporary dynamic storage in the form of cache for limited and frequently used data/control data. However the node delivery...
Delay/Disruption Tolerant Networks (DTN) often use multi-copy routing protocols to improve the efficiency that the messages are delivered successfully, but the network load is increased by vast message copies. A new scheme is presented using threshold method on multi-copy routing protocol. The all nodes are added an encounter counter in the message transferred. If the counter reaches the set threshold...
Energy saving is one of the important tasks in wireless communication due to the limited battery attached to the mobile devices. This paper has two parts. In the first part, we give a localized algorithm for constructing the Voronoi diagram with the given set of nodes in wireless networks. In the later part, an energy efficient network architecture for wireless networks using Voronoi diagram is described...
Modern battlefields represent complex network scenarios that include different networking domains, which need to communicate. These domains include different military entities,such as various allies armies, forces of the same army, mobile objects, for example tanks, vehicles, soldiers, flying vehicles, etc., that need to communicate quickly and will minimum of overhead, in order to accomplish their...
Todaypsilas Internet architecture faces many challenges, especially the poor support for security and universal services. By analyzing the drawbacks of current TCP/IP protocol and related research schemes such as HIP and FARA, we propose a trustworthy universal network architecture model LISNA, which is based on locator/identity split. LISNA defines the network architecture by introducing a new kind...
This paper explores the attributes, layering models and objective functions in cross layer designs for mobile ad hoc wireless networks by taking all the statistical characteristics and constraints from the physical (PHY) layer, media access control (MAC) layer and network (NET) layer into consideration. This paper reviews the entire network optimization across all the PHY/MAC/NET layers. At the PHY...
Internet Relay Chat (IRC) is a critical application in military networks for maintaining situational awareness and conducting battle management at all echelons. But these networks are often subject to frequent disconnections, limited bandwidth, and long delays, especially when using satellite services and field radios. Such conditions are inhospitable to TCP, and thus the standard IRC protocol, which...
Sink mobility has become an increasingly important requirement of various sensor network applications. Handling such mobile sink conditions brings new challenges to large-scale sensor networking. This investigation proposed a hybrid-structure routing protocol (HSRP) that combines the benefits of grid-based and cluster-based structures. Grid-based structure is designed to solve the cluster head selection...
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