System Design for Opportunistic Spectrum Access Using Statistical Decision-Making and Coded-MAC
نویسندگان
چکیده
منابع مشابه
Joint Phy-mac Design for Opportunistic Spectrum Access with Multi-channel Sensing
This paper addresses the design of opportunistic spectrum access (OSA) where secondary users are allowed to sense and access multiple channels in the spectrum without causing unacceptable interference to primary users. Integrated in OSA design are a spectrum sensor at the physical (PHY) layer and a sensing and an access strategy at the MAC layer. Within the framework of partially observable Mar...
متن کاملJoint PHY-MAC Design for Opportunistic Spectrum Access in the Presence of Sensing Errors
We address the design of opportunistic spectrum access (OSA) strategies that allow secondary users to independently search for and exploit instantaneous spectrum availability. The design objective is to maximize the throughput of secondary users while limiting the probability of colliding with primary users. Integrated in the joint design are three basic components: a spectrum sensor at the phy...
متن کاملAn Efficient Spectrum Decision Scheme in Opportunistic Spectrum Access Networks
In this paper, we propose and compare two spectrum decision schemes namely; Adaptive Spectrum Decision (ASD) and Maximum Remaining Lifetime (MRL). The simulation results and performance analysis such as channel utilization, data delivery, and spectrum handoff rate are evaluated and compared. The results obtained that ASD has great performance in comparison with MRL scheme. KeywordsSpectrum deci...
متن کاملJoint Design for Opportunistic Spectrum Access with Multi-Channel Sensing
Consider a spectrum of N orthogonal channels licensed to a slotted primary network. Let Sn(t) ∈ {0 (busy), 1 (idle)} denote the occupancy of channel n in slot t. We assume that the spectrum occupancy S(t) ∆ = [S1(t), . . . , SN(t)] follows a discrete-time homogeneous Markov process with finite state space S ∆ = {0, 1} and known transition probabilities {Ps,s′}s,s′∈S, where Ps,s′ ∆ = Pr{S(t+ 1) ...
متن کاملFlexible Multicarrier PHY Design for Opportunistic Spectrum Access
Opportunistic use of White Spaces (WS) has opened up a whole new paradigm in research on cognitive radio (CR). One of the issues addressed by the QoSMOS project is the design of a flexible and efficient physical layer (PHY) for CR systems. To this aim, different modulation techniques are being investigated and are presented in this paper. They fulfil the low out of band leakage and spectral eff...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Wireless Communications and Mobile Computing
سال: 2020
ISSN: 1530-8677,1530-8669
DOI: 10.1155/2020/8816760