2010 IEEE Symposium on New Frontiers in Dynamic Spectrum (DySPAN)最新文献_第10页

OFDM-Based Dynamic Spectrum Access 基于ofdm的动态频谱接入

2010 IEEE Symposium on New Frontiers in Dynamic Spectrum (DySPAN) Pub Date : 2010-04-06 DOI: 10.1109/DYSPAN.2010.5457917

M. Živković, Dominik Auras, R. Mathar

引用次数: 8

Block Edge Mask Baseline Limits for Mobile Communication Network Base Stations in the 790-862 MHz Digital Dividend Spectrum 790-862 MHz数字红利频谱中移动通信网络基站的块边缘掩码基线限制

2010 IEEE Symposium on New Frontiers in Dynamic Spectrum (DySPAN) Pub Date : 2010-04-06 DOI: 10.1109/DYSPAN.2010.5457869

H. Karimi, G. Lapierre, T. O’Leary, W. Sami, G. Warren, Martin Fenton

引用次数: 5

Learning Multiuser Channel Allocations in Cognitive Radio Networks: A Combinatorial Multi-Armed Bandit Formulation 认知无线网络中学习多用户信道分配:一种组合多臂强盗公式

2010 IEEE Symposium on New Frontiers in Dynamic Spectrum (DySPAN) Pub Date : 2010-04-01 DOI: 10.1109/DYSPAN.2010.5457857

Yi Gai, B. Krishnamachari, Rahul Jain

{"title":"Learning Multiuser Channel Allocations in Cognitive Radio Networks: A Combinatorial Multi-Armed Bandit Formulation","authors":"Yi Gai, B. Krishnamachari, Rahul Jain","doi":"10.1109/DYSPAN.2010.5457857","DOIUrl":"https://doi.org/10.1109/DYSPAN.2010.5457857","url":null,"abstract":"We consider the following fundamental problem in the context of channelized dynamic spectrum access. There are $M$ secondary users and $N ge M$ orthogonal channels. Each secondary user requires a single channel for operation that does not conflict with the channels assigned to the other users. Due to geographic dispersion, each secondary user can potentially see different primary user occupancy behavior on each channel. Time is divided into discrete decision rounds. The throughput obtainable from spectrum opportunities on each user-channel combination over a decision period is modeled as an arbitrarily-distributed non-negative random variable with bounded support but unknown mean, i.i.d. over time. The objective is to search for an allocation of channels for all users that maximizes the expected sum throughput. We formulate this problem as a combinatorial multi-armed bandit (MAB), in which each arm corresponds to a matching of the users to channels. Unlike most prior work on multi-armed bandits, this combinatorial formulation results in dependent arms. Moreover, the number of arms grows super-exponentially as the permutation $P(N,M)$. We present a novel matching-learning algorithm with polynomial storage and polynomial computation per decision period for this problem, and prove that it results in a regret (the gap between the expected sum-throughput obtained by a genie-aided perfect allocation and that obtained by this algorithm) that is uniformly upper-bounded for all time $n$ by a function that grows as $O(M^4 N log n)$, i.e. polynomial in the number of unknown parameters and logarithmic in time. We also discuss how our results provide a non-trivial generalization of known theoretical results on multi-armed bandits.","PeriodicalId":106204,"journal":{"name":"2010 IEEE Symposium on New Frontiers in Dynamic Spectrum (DySPAN)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126092589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 225

Competition with Dynamic Spectrum Leasing 与动态频谱租赁的竞争

2010 IEEE Symposium on New Frontiers in Dynamic Spectrum (DySPAN) Pub Date : 2010-03-29 DOI: 10.1109/DYSPAN.2010.5457903

Lingjie Duan, Jianwei Huang, Biying Shou

{"title":"Competition with Dynamic Spectrum Leasing","authors":"Lingjie Duan, Jianwei Huang, Biying Shou","doi":"10.1109/DYSPAN.2010.5457903","DOIUrl":"https://doi.org/10.1109/DYSPAN.2010.5457903","url":null,"abstract":"Dynamic spectrum leasing can greatly enhance the spectrum efficiency and encourage more flexible services in the spectrum market. This paper presents a detailed analytical study of the strategic interactions of two competing secondary network operators (duopoly) who need to make optimal investment (leasing) and pricing decisions while taking secondary endusers' heterogeneous wireless characteristics into consideration. The operators need to determine how much to lease from the spectrum owner, and compete to sell the spectrum to secondary users to maximize their individual profits. We model the system as a three-stage multi-leader dynamic game. Both the operators' equilibrium investment and pricing decisions turn out to have nice threshold properties. Each secondary user receives a fair equilibrium resource allocation that only depends on the leasing cost of the operators and is independent of other users' channel conditions and transmission powers. To further understand the impact of competition, we compare the duopoly equilibrium result with the coordinated case where the two operators cooperate to maximize the total profit. We show that the Price of Anarchy of the two operators' total profit is 82% with symmetric leasing costs, i.e., the maximum loss of the total profit due to competition is no larger than 18%. We also show that competition always leads to better payoffs for users compared with the coordinated case.","PeriodicalId":106204,"journal":{"name":"2010 IEEE Symposium on New Frontiers in Dynamic Spectrum (DySPAN)","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121431201","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 70

The Viability of Spectrum Trading Markets 频谱交易市场的可行性

2010 IEEE Symposium on New Frontiers in Dynamic Spectrum (DySPAN) Pub Date : 2009-08-15 DOI: 10.1109/MCOM.2011.5723799

C. Caicedo, M. Weiss

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引用次数: 21