In many applications it is very difficult or rather impossible to recharge battery. Limitation of energy supply is holding up the progress of WSNs towards large scales and true autonomous operations. For outdoor applications sensor networks needs battery supply for their operations. Vishram Bapat, College of Engineering, Miraj Shivaji University, Kolhapur, IndiaĪbstract- The wireless sensor network (WSN) is an autonomous long-term environment monitoring network. Patil college of engineering Kolhapur, India Solar Energy Based Medium Access Control for Out Door Applications of WSN The design results and the proposed experimental methodologies presented in this paper will be helpful to realize InP and a -GaN IMPATT oscillators for Terahertz communication. The extensive simulation results reveal that Impatt diode based on a -GaN gives better performance in terms of efficiency and output power. The RF output power in case of DDR Impatt diode based on InP is found to be 2.81 W at 0.3 THz and 1.77 W at 0.5 THz while that in case of a-GaN DDR Impatt is 6.23 W at 0.3 THz and 9.34 W at 0.5 THz. The same for a-GaN DDR Impatt diode is found to be 15.47% at 0.3 THz and 15.14% at 0.5 THz at an optimum bias current density of 0.5 x 10 7 A/m 2 and 1.1 x 10 8 A/m 2 respectively. The DC-to-RF conversion efficiency for InP DDR Impatt diode is found to be 18.38% at 0.3 THz and 13.18% at 0.5 THz at an optimum bias current density of 8.0 x 10 8 A/m 2 and 1.6 x 10 9 A/m 2 respectively. The simulation studies reveal that these devices are potential sources for generating high RF power. The bias current density is optimized with respect to maximum conversion efficiency and device negative resistance. ![]() A double iterative computer method based on drift-diffusion model has been used to study their performance. Simulation results show that VBR can decrease the number of routing packets by about one-third compared to LAR.Ībstract - The properties and performance of p +pnn + III-V semiconductor, viz., Indium Phosphide (InP) and Wurtzite phase of Gallium Nitride (Wz-GaN or a-GaN) based DDR Impatt diodes at Terahertz (THz) frequency has been investigated for optimum bias current density through modeling and simulation technique. In case of discovery phase failure, VBR will enlarge the broadcast region again around the destination, unlike LAR where the network will be flooded with this request again. In this paper, we will propose Vectorized Broadcast Routing (VBR) as an enhancement for LAR scheme 1 to reduce the broadcast by enlarging the broadcast region around the destination. Some of these protocols utilize the location information on the nodes to restrict the broadcast zone like Location Aided Routing (LAR). Many schemes were proposed to restrict traditional flooding by means of probability or mathematical methods. This broadcast consumes valuable network resources (e.g., battery power, bandwidth, processing time, etc.). Every node which receives this broadcast packet will rebroadcast it to all neighbors. Seungjin Park, Department of Management, MIS, & CS, University of Southern Indiana, Evansville, IN 47712, USAĪbstract-Mobile ad hoc networks routing protocols rely on traditional broadcast (flooding) to establish a route to the destination. Seong-Moo Yoo, Electrical & Computer Engineering Department, The University of Alabama in Huntsville, Huntsville, AL 35899, USA Mohammad Al-Shurman, Department of Network Engineering and Secu-rity, Jordan University of Science and Technology, Ramtha, Jordan ![]() Vectorized Broadcast Routing in Mobile Ad Hoc Networks
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