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Energy level performances of two packet delivery schemes in random WSN (Wireless Sensor Networks) are evaluated in presence of Rayleigh fading. Two different information delivery mechanisms involving regenerative relays with or without error correcting capability are investigated. Energy consumption for successful delivery of a data packet for each mechanism is evaluated and compared under several...
In this paper, an adaptive forwarding strategy for wireless networks using relays in multi hop and cooperative network is analyzed. Two schemes, amplify-and-forward (AF) and decode-and-forward (DF) are investigated depending on channel condition. Further it allows switching between the two schemes according to channel condition. The bit error probability performance (BEP) for the proposed hybrid strategy...
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 required to sustain the network connectivity...
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 maintaining a predefined maximum tolerable Bit Error...
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