OUTAGE PROBABILITY:
In wireless slow fading channel scenario, outage probability is one of the most important parameters for system performance.Namely, when the instantaneous signal to noise ratio (SNR) is below the minimal acceptable threshold value, an outage event will occur. Some advanced techniques have been proposed to alleviate this problem in the literature. Among them, relay-aided cooperative transmission is an efficient way.However, the flexibility of relay node deployment is limited by existing power supply. Besides, maintenance costs, such as electric charge, also restrict the massive deployment.the performance analysis of energy harvesting relay-aided cooperative network with multiple available relay nodes in terms of outage behavior. Based on the Markov property of energy buffer status, an on off model is proposed to characterize the stochastic property of harvested energy flow. The explicit closed-form expression of outage probability in the proposed relay-aided cooperative protocol is obtained in the high SNR regime.
Fig : outage probability of relay
perspective of systematic level, an on-off Markov model was proposed to characterize the stochastic property of harvested energy flow. With the help of some approximations, the explicit closed form of outage probability of cooperative system has been derived in the high SNR regime. It can be observed that great improvement can be obtained by the proposed cooperative protocol in terms of minimizing outage probability
FOR MORE DETAILS:
In wireless slow fading channel scenario, outage probability is one of the most important parameters for system performance.Namely, when the instantaneous signal to noise ratio (SNR) is below the minimal acceptable threshold value, an outage event will occur. Some advanced techniques have been proposed to alleviate this problem in the literature. Among them, relay-aided cooperative transmission is an efficient way.However, the flexibility of relay node deployment is limited by existing power supply. Besides, maintenance costs, such as electric charge, also restrict the massive deployment.the performance analysis of energy harvesting relay-aided cooperative network with multiple available relay nodes in terms of outage behavior. Based on the Markov property of energy buffer status, an on off model is proposed to characterize the stochastic property of harvested energy flow. The explicit closed-form expression of outage probability in the proposed relay-aided cooperative protocol is obtained in the high SNR regime.
perspective of systematic level, an on-off Markov model was proposed to characterize the stochastic property of harvested energy flow. With the help of some approximations, the explicit closed form of outage probability of cooperative system has been derived in the high SNR regime. It can be observed that great improvement can be obtained by the proposed cooperative protocol in terms of minimizing outage probability
FOR MORE DETAILS:
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