Arnab Nandi

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Energy level performance of three packet delivery schemes in a Wireless Sensor Networks (WSNs) over fading channels is evaluated. Effects of two short term fading such as Rayleigh and Rician on packet delivery schemes are evaluated. Three different information delivery mechanisms are considered using regenerative relays with or without error correction(More)
This paper evaluates energy level performance of three packet delivery schemes in a Wireless Sensor Networks (WSN) in presence of Rayleigh fading. Three different information delivery mechanisms are investigated using regenerative relays with or without error correction capability. Energy consumption for successful delivery of a data packet for each(More)
Design of an energy efficient wireless sensor network (WSN) has emerged as an important research area. Minimizing energy consumption is the primary objective for WSN. WSN is usually characterized by tiny size, low cost and low transmission power. So optimization of transmission power is of great importance. Optimal transmit power not only achieves better(More)
Energy level performances of three packet delivery schemes in Wireless Sensor Networks (WSN) are evaluated in presence of Rayleigh fading. Three different information delivery mechanisms are investigated using regenerative relays with or without error correction capability. Energy consumption for successful delivery of a data packet for each mechanism is(More)
This paper evaluates energy level performance of three packet delivery schemes in a Wireless Sensor Networks (WSN) in multipath Rician fading channel. Three different information delivery mechanisms are investigated using regenerative relays with or without error correction capability. Energy consumption for successful delivery of a data packet for each(More)
This paper investigates the effects of shadowing on the optimal transmit power required to sustain the network connectivity while maintaining a predefined maximum tolerable Bit Error Rate (BER) in a Wireless Sensor Networks (WSN). Optimization of transmit power is of great importance in WSN since sensor nodes are battery driven and optimization helps to(More)
In this paper a novel network architecture employing space diversity for Wireless Sensor Networks (WSN) is proposed. A simulation study has been carried out to evaluate performance of such WSN employing space diversity in terms of optimal transmit power. Optimal transmit power is the minimum power required to sustain the network connectivity while(More)
This paper evaluates energy level performance of error control strategies in Wireless Sensor Networks (WSNs) in presence of Rayleigh fading. More precisely Forward Error Correcting (FEC) and Automatic Repeat Request (ARQ) technique are studied for a square grid WSN. ARQ scheme is compared with FEC scheme in terms of Packet Error Rate (PER), energy(More)
In wireless sensor networks (WSN) nodes are powered by limited lifetime batteries. Excessive high transmit power exhaust battery faster and increases inter-node interference significantly. On the other hand, low transmit power may cause network disconnectivity. Thus choice of transmit power is an important issue. Optimal transmit power is the minimum power(More)