2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications最新文献_第5页

Second-order statistics of 2D non isotropic mobile-to-mobile wireless channels 二维非各向同性移动到移动无线信道的二阶统计量

2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2011-09-01 DOI: 10.1109/PIMRC.2011.6139788

Prasad T. Samarasinghe, T. Abhayapala, T. Lamahewa, R. Kennedy

引用次数: 3

Blind frequency-dependent IQ imbalance compensation scheme using CMA for OFDM system 基于CMA的OFDM系统盲频依赖IQ不平衡补偿方案

2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2011-09-01 DOI: 10.1109/PIMRC.2011.6140626

M. Matsui, T. Nakagawa, R. Kudo, K. Ishihara, M. Mizoguchi

引用次数: 8

Decentralized beam coordination via sum rate maximization in TDD multi-cell MIMO systems 基于和速率最大化的TDD多小区MIMO系统分散波束协调

2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2011-09-01 DOI: 10.1109/PIMRC.2011.6139720

P. Komulainen, Antti Tölli, M. Juntti

引用次数: 10

Outage analysis of Hybrid-ARQ protocols in coherent free-space optical communications 相干自由空间光通信中混合arq协议的中断分析

2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2011-09-01 DOI: 10.1109/PIMRC.2011.6139812

S. M. Aghajanzadeh, M. Uysal

引用次数: 10

Heuristic approach to construct three-dimensional codes for feedback-based MIMO-CDMA 基于反馈的MIMO-CDMA三维编码的启发式构建方法

2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2011-09-01 DOI: 10.1109/PIMRC.2011.6139881

Yuya Hayashi, M. Hamamura, Kazuki Chiba

引用次数: 0

Performance of cooperative spectrum sensing with correlated cognitive users' decisions 基于相关认知用户决策的协同频谱感知性能

2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2011-09-01 DOI: 10.1109/PIMRC.2011.6140040

Lamiaa Khalid, A. Anpalagan

{"title":"Performance of cooperative spectrum sensing with correlated cognitive users' decisions","authors":"Lamiaa Khalid, A. Anpalagan","doi":"10.1109/PIMRC.2011.6140040","DOIUrl":"https://doi.org/10.1109/PIMRC.2011.6140040","url":null,"abstract":"Cooperative spectrum sensing is employed in cognitive radio network to reliably detect the primary users' transmissions by fusing the sensing data of individual secondary users. In this paper, we study the performance of cooperative spectrum sensing, in terms of the system probability of detection, when the secondary users' local decisions are correlated. We use a correlation model that is indexed by a single parameter and fix the fusion rule to one of three decision rules which are the OR, AND and Majority Voting rules. Our results show that the performance of cooperative spectrum sensing degrades with the increase in correlation between the secondary observations for all the fusion rules considered. We also show that, whether the OR or Majority Voting rule is superior depends mainly on the correlation index. When the secondary users' local decisions are independent, the Majority Voting rule outperforms the OR and AND fusion rules. However, as the correlation between the local decisions increases, the OR fusion rule outperforms the other two rules. Also, as the correlation index increases, for the same system probability of false alarm, higher signal-to-noise ratio is required to be received at the secondary users to achieve the same system probability of detection for all the fusion rules considered.","PeriodicalId":262660,"journal":{"name":"2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132002707","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: 6

Resource allocation in optical wireless networks 光无线网络中的资源分配

2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2011-09-01 DOI: 10.1109/PIMRC.2011.6139659

Birendra Ghimire, H. Haas

{"title":"Resource allocation in optical wireless networks","authors":"Birendra Ghimire, H. Haas","doi":"10.1109/PIMRC.2011.6139659","DOIUrl":"https://doi.org/10.1109/PIMRC.2011.6139659","url":null,"abstract":"In this paper, self-organising interference management for optical wireless networks deployed inside an aircraft cabin is investigated. A user that has successfully received data in a given frame and intends to continue receiving data in the next frame broadcasts a busy burst (BB) in a time-multiplexed BB slot. A neighbouring access point (AP) that intends to reuse the reserved resource listens to the BB slot and infers (prior to transmission) the amount of co-channel interference (CCI) it could cause towards the user that has reserved the resource, provided that channel reciprocity holds. This is a vital information for an AP to decide without any central supervision whether to transmit or to defer the transmission to another time or frequency slot so as to limit CCI caused to the active link to a threshold value. Compared to using static resource partitioning for interference coordination, the proposed approach improves the median system throughput by 17%whilst delivering roughly the same throughput at the cell-edge. Moreover, it is demonstrated that the threshold parameter can be adjusted to tradeoff aggregate system throughput for user throughput at the cell-edge.","PeriodicalId":262660,"journal":{"name":"2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130012767","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: 14

Feasibility evaluations for secondary LTE usage in 2.7–2.9GHz radar bands 2.7-2.9GHz雷达波段二次LTE使用可行性评估

2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2011-09-01 DOI: 10.1109/PIMRC.2011.6140017

Muhammad Imadur Rahman, Jorgen Karlsson

引用次数: 30

A practical indoor TOA ranging error model for localization algorithm 一种实用的室内TOA测距误差模型

2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2011-09-01 DOI: 10.1109/PIMRC.2011.6139685

Jie He, Qin Wang, Qianxiong Zhang, Bingfeng Liu, Yanwei Yu

引用次数: 29

Multi-rate opportunistic spectrum access in multi-hop ad hoc networks 多跳自组织网络中的多速率机会频谱接入

2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2011-09-01 DOI: 10.1109/PIMRC.2011.6140024

Ari Raptino, M. Bandai, Takashi Watanabe

{"title":"Multi-rate opportunistic spectrum access in multi-hop ad hoc networks","authors":"Ari Raptino, M. Bandai, Takashi Watanabe","doi":"10.1109/PIMRC.2011.6140024","DOIUrl":"https://doi.org/10.1109/PIMRC.2011.6140024","url":null,"abstract":"Opportunistic spectrum access (OSA) is a suitable approach to increase spectrum efficiency for the current spectrum management. This paper considers the temporal aspect of 802.11-based OSA scenario. Firstly, we investigate the secondary users (SU) multi-rate transmission and number of hops effects to the SU performance when exploiting primary users (PU) idle duration. Numerical analysis and simulation results show that, during limited PU idle duration, higher data rate transmission is essential even though it results in more hops but as the SU source traffic is getting busier, the balance between the data rate and number of hops is required. Secondly, according to the multi-rate multi-hop investigation, we propose a rate adaption scheme with PU activity consideration, called Auto Rate Increase (ARI). ARI is based on the Auto Rate Fallback (ARF) scheme with the difference that ARI aims to increase the SU data rate whenever it detects PU interruption failure. ARI also adopts ARF simplicity, hence, there is no need for any prior nor additional knowledge of the networks environment. Simulation results show, under tight OSA environment, ARI scheme can increase the SU performance up to 56% compared with the original ARF scheme.","PeriodicalId":262660,"journal":{"name":"2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134326435","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: 2