International Journal of Advanced Networking and Applications

N. V. Sudheer Kumar ¹, Brijendra Kumar Joshi ¹

Affiliations
1 Military College of Telecommunication Engineering, Mhow-453441, MP, IN

Abstract

The Wireless Sensor Networks (WSNs) have advanced to the multimedia processing and streaming applications in the recent past with the advent of higher end motes like the iMote2. The data rates available from the radios of the WSN nodes are low so that for streaming applications to be sustained in these networks, special cares have to be taken to allow only one streaming path in any node’s neighborhood, which means in a common sink network, all the protocol layers in the nodes are optimized for maintaining a single streaming path in the network at any point of time. In a dense WSN, for single path optimized streaming for maximum throughput, the MAC and routing layers have to be specially designed to avoid traffic generation from nodes in the vicinity of an ongoing streaming path. In this paper, a routing protocol is described which is built on top of a streaming MAC protocol called MLMAC. The Single-path Streaming Optimized Routing Protocol (SPSORP) establishes the routing table during the initialization phase of the protocol and suspends the route updates when streaming is detected in the vicinity of a node. The simulation in OMNeT++ simulator confirms the possibility of streaming in a dense WSN with the combination of MLMAC and SPSORD to the tune of compressed voice streaming rates with iMote2 hardware platform.

Keywords

Multihop Routing, QoS, Real-Time, Streaming, Wireless Multimedia Sensor Networks, Wireless Sensor Networks.

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Brijendra Kumar Joshi ¹, Megha Soni ²

Affiliations
1 Military College of Telecommunication Engineering, Mhow, IN
2 Swami Vivekanand College of Engineering, Indore, IN

Abstract

Security assessment of routing and authentication protocols is based on the comparison of basic and secured versions of protocols such as AODV, SAODV, DSDV, SEAD, ZRP, SRP, LHAP, HEAP etc. In this paper, a framework for security assessment is presented. It is a complete system that attempts to provide the promised services to each user or application. To assess the security of different protocols, a security index is assigned. The value of security index shows how much a protocol is secured. To assign the security index, security parameters have been found out and the performance of different protocols have been analyzed under normal condition, Black Hole attack, Wormhole attack, and DoS attack.

Keywords

Routing, Authentication, Framework, Security Index, Performance Index.

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Brijendra Kumar Joshi ¹

Affiliations
1 Indore Institute of Science and Technology, Indore - 453331, IN

Abstract

Graphs are basic requirement of research in many fields like electrical circuits, computer networks, Genome sequencing, traffic flow, compiler design and cryptography to name a few. There are three fundamental issues one has to address in respect of an undirected graph. First, given a number of nodes, how many unique degree sequences can be there to handle? Second, out of these unique degree sequences, how many are graphic? And third, how to generate random graphs for a degree sequence? This paper presents working solutions for all these issues. An efficient algorithm to find all unique degree sequences for a given number of nodes is presented. An algorithm based on Havel-Kasami algorithm is presented which is more efficient than Erdos-Gallai algorithm to test the connectivity. Finally, an algorithm to generate random graphs is also presented.

Keywords

Adjacency List, Connected Graph, Degree Sequence, Erdos-Gallai, Havel-Kasami.

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