Abstract — The Delay Tolerant Networking (DTN) aims at providing effective medium for communicating where no continuous connectivity is guaranteed for a given network. It is really important especially when there are faulty nodes in a network. Mobile Sensor Networks are one of the most fault prone networks due to its inherent nature of limited resources. Existing routing schemes promotes the algorithms to make use of message replication to ensure high delivery rate for messages. Protocols that rely
In this paper an ultra low power and probabilistic based noise tolerant latch is proposed based on Markov Random Field (MRF) theory. The absorption laws and H tree logic combination techniques are used to reduce the circuit complexity of MRF noise tolerant latch. The cross coupled latching mechanism is used at the output of the MRF latch inorder to preserve the noise tolerant capability of MRF latch. The proposed latch is faster than the latches presented in the literature and provides
Review on security issues on routing protocols in Delay Tolerant networks 1. Swati Research scholar Punjabi University Patiala Email:er.swati.jindal87@gmail.com 2. Dr.Jagtar Singh Associate professor,ECE department Ycoe talwandi sabo Punjabi university Patiala Email: jagtarsivian@yahoo.com 3. Dr.Harminder Singh Bindra Assistant Professor,IT department MIMIT,Malout Email: bindra.harminder@gmail.com Abstract: In modern world, Delay Tolerant Network (DTN) has significant role in communications
15 Nishant Bochare W1165712 Quality of service in Wireless and Cellular Networks A report by Nishant Bochare Santa Clara University Submitted to Dr. Keyvan Moataghed Audience Audience for this topic can be the anyone who has some basic knowledge about networking. This Document provide detailed information about quality of structure (QoS) in wireless networks and cellular networks. This document contain overview of QoS and several enhancement and schemes for QoS.
time dispersion or delay spread. These factors are all related to variability introduced by mobility of the user and the wide range of environmental conditions that are encountered as a result. (i) Multipath Delay Spread The multipath delay spread is the time dispersion characteristic of the channel. Each multipath component is typically associated with different time delay and attenuation. The shortest of which is the LOS path. The root mean square delay spread in multipath delay is denoted by τ_d
security mechanisms are discussed. Underwater wireless communication networks are particularly vulnerable to malicious attacks due to the high bit error rates, large and variable propagation delays, and low bandwidth of acoustic channels. A complete survey of securing underwater wireless communication networks is presented, and the research challenges for secure communication in this environment are outlined.Acoustic channels have low bandwidth. The link quality in underwater communication is severely
ABSTRACT A simulation model is presented to analyze and evaluate the performance of VoIP based integrated wireless LAN/WAN with taking into account various voice encoding schemes. The network model was simulated using OPNET Modeler software. Different parameters that indicate the QoS like MOS, jitter, end to end delay, traffic send and traffic received are calculated and analyzed in Wireless LAN/WAN scenarios. Depending on this evaluation, Selection codecs G.729A consider the best choice for VoIP.
Gujarat,India #Department of Computer Science And Applications, Maharaja Krishnakumarsinhji Bhavanag University, Bhavnagar,Gujarat,India 1vyomal.pandy@ckpcet.ac.in 2prashant.dolia@yahoo.com 3sharmila.rana@ckpcet.ac.in Abstract: Because of high speed of vehicles, short contact durations and rapid changes in topology occurs in Vehicular Delay Tolerant Network (VDTN). This will generates few transmission opportunities and high and unpredictable delay. This problem can be solved by different routing
Data center networks Neha Maid Abstract - Presented here is a survey paper that puts light on the recent work and research done in the field of Data Center Networks. This survey paper is divided into sections describing each aspect of data center networks. The aspects covered are Routing in data center networks, networking infrastructure inside a data center, five generations of datacenter networks, congestion control protocol, Green data centers. Brief description has been provided regarding
Sensor Network Lifetime Authors in [58], introduced an algorithm that exploit the sensor redundancy in the same zone by dividing the network into clusters thus the maintaining of the backbone connectivity can be done by retaining an important set of working nodes and close the redundant ones. Regarding the communication RTCP denotes equivalent nodes based on the connectivity information of one-hop neighbors which causes in reducing the communication overhead and then the scheduling of the nodes