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The paper evaluates the performance of a CDMA based wireless sensor networks (WSN) with layered architecture in terms of bit error rate (BER) and energy consumption for successful transmission of data packets. Correlation amongst signal and interferers in shadowed environment has been considered. Two kinds of interference namely multiple access interference(More)
This paper evaluates the end-to-end performance of a CDMA based static multi-hop wireless sensor network (WSN) in shadowed environment. An interference model for multi-hop is presented using correlated interferers. Three different information delivery mechanisms are studied using regenerative relays with or without error correction capability. Energy(More)
In this paper, we analyze the performance of a single hop CDMA based wireless sensor network (WSN) using receiving antenna diversity at sink in terms of outage probability and bit error rate (BER). Correlation amongst signal and interferers is considered in large scale fading environment. We assume each node is power controlled while antenna diversity is(More)
The paper evaluates the performance of a CDMA based wireless sensor networks (WSN) with layered architecture in terms of energy consumption for successful transmission of data packets, considering only correlation among interferers in shadowed environment. We consider a model of interference at the sink for a layered architecture of CDMA based WSN with two(More)
Power conservation is one of the most important issues in wireless ad hoc and sensor networks, where nodes are likely to rely on limited battery power. In this paper we evaluate multi-hop based data transmission performance of a static CDMA wireless sensor network (WSN), where the positions of nodes are random. Data generated from the source node is(More)
In the genre of residual vibration reduction, Input Shaping is a relatively new feed-forward control strategy. It is accomplished by convolving a sequence of impulses with a desired system command to produce a shaped input which is used to drive the system. In this research, methodologies for designing the impulse sequence for five different schools of(More)
Energy level performance of a multi hop CDMA wireless sensor networks is analyzed incorporating two popular error control schemes. Decoding is considered only at the sink which has enough power to run the complex decoding algorithms. In one case we consider a simple end-to-end ARQ, while the other case is based on hybrid ARQ type I (HARQ-I) using BCH code.(More)
Energy conservation is one of the most important issues in wireless ad hoc and sensor networks, where nodes are likely to rely on limited battery power. Many new algorithms have been proposed for the problem of routing data in sensor networks. In this paper, we propose a new forwarding technique where nodes are placed in a random fashion maintaining a(More)
This paper evaluates the end-to-end outage probability of a CDMA based static multi-hop wireless sensor network (WSN) in shadowed environment. An interference model for multi-hop is presented considering correlation amongst interferers. Three different information delivery mechanisms are studied using regenerative relays with or without error correction(More)