EWA Selection Strategy with Channel Handoff Scheme in Cognitive Radio
نویسندگان
چکیده
This paper proposes an improved Experience-Weighted Attraction (EWA) selection algorithm with channel handoff scheme in order to meet the practical requirement for Cognitive Radio (CR) application. In further research, sensitivity and stability verification is conducted by focusing on the comparison with Q learning algorithm after the establishment of a wireless simulation space with time slot sequences that extremely imitates real Cognitive Radio environments. The emulation results show that channel selection strategy with EWA learning has more advantageous performance. Copyright © 2014 IFSA Publishing, S. L.
منابع مشابه
Proactive SRV spectrum handoff protocol based on GCS scheme in cognitive radio adhoc network
Cognitive radio technology allows the secondary users to utilize the spectrum, when it is not occupied by the primary users. Whenever a primary user wants to utilize a channel which is occupied by a secondary user, the secondary user should perform a proactive spectrum handoff to another channel and vacate the selected channel before the primary user utilizes it. This scheme avoids collision be...
متن کاملResearch on Channel Selection Algorithms in Cognitive Radio Networks
To address the secondary users channel selection issue in cognitive radio network, a novel channel selection strategy is proposed. Four typical channel selection models under auction mechanism, machine learning scheme, channel prediction scheme and optimization scheme are compared and analyzed. Based on the optimization theory, the selfish channel selection algorithm and the cooperative channel...
متن کاملCognitive Radio Channel Selection Strategy Based on Experience-Weighted Attraction Learning
In this paper, an innovative proposed channel selection algorithm based on Experience-Weighted Attraction (EWA) learning allows Cognitive Radio (CR) to learn radio environment communication channel characteristics online. By accumulating the history channel experience, it can predict, select and change the current optimal communication channel, dynamic ensure the quality of communication links ...
متن کاملAdaptive Spectrum Opportunity Access in Cognitive Radio Networks
This paper presents the Adaptive Spectrum Opportunity Access (ASOA) scheme. The proposed scheme greatly improves spectrum utilization and provides improved QoS for the secondary users. The secondary data delivery time is adapted in different spectrum opportunities through ASOA scheme based on the estimated collision rates in a sophisticated way. The performance evaluations in terms of the chann...
متن کاملProactive integrated handoff management in cognitive radio mobile ad hoc networks
In cognitive radio networks, the secondary users (SUs) switch the data transmission to another empty spectrum band to give priority to primary users (PUs). In this paper, channel switching in cognitive radio mobile ad hoc networks (CR-MANETs) through an established route is modeled. The probability of channel availability in this route is calculated based on the PU's activity, SU's mobility, an...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Wireless Personal Communications
دوره 87 شماره
صفحات -
تاریخ انتشار 2016