2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications最新文献_第7页

A novel transmit diversity scheme for LTE-Advanced uplink 一种新的LTE-Advanced上行传输分集方案

2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2009-09-01 DOI: 10.1109/PIMRC.2009.5450376

Y. Meng, M. You, Jin Liu

{"title":"A novel transmit diversity scheme for LTE-Advanced uplink","authors":"Y. Meng, M. You, Jin Liu","doi":"10.1109/PIMRC.2009.5450376","DOIUrl":"https://doi.org/10.1109/PIMRC.2009.5450376","url":null,"abstract":"Nx SC-FDMA has been accepted as one of the main multiple access schemes for LTE-Advanced, which has been attracted much attention for supporting extended bandwidth. The classical transmit antenna diversity technique as Space-Frequency Block Coding (SFBC) will destroy the order and structure of the original symbols and thus enhance the peak-to-average power ratio (PAPR). To solve this problem, a modified scheme of SFBC compatible with low PAPR is proposed in this paper. In order to achieve more diversity gain, a new subcarrier mapping method is proposed by which one turbo coded stream is transmitted from multiple frequency bands of Nx SC-FDMA system. The proposed SFBC scheme is based on the groups rather than the symbols which remains the same signal distribution as the equivalent conventional transmission to reduce the PAPR. Due to the channel varying in frequency domain during one turbo coded stream, the new subcarrier mapping method has mapped the one turbo coded stream to the different frequency bands to achieve multiple-branch frequency diversity gain. Simulation results show that the proposed transmit diversity scheme has good PAPR and Block Error Rate (BLER) on frequency selective MIMO channels.","PeriodicalId":110448,"journal":{"name":"2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129259929","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

Low complexity Frequency Domain Turbo Equalization based on single frequency tone in MIMO systems 基于MIMO系统单频调的低复杂度频域Turbo均衡

2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2009-09-01 DOI: 10.1109/PIMRC.2009.5449850

Yang Yang, Yongyu Chang, Wei Yang, Yan Long Wang, Dacheng Yang

引用次数: 0

On the mobile wireless access via MIMO relays 对移动无线接入通过MIMO中继

2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2009-09-01 DOI: 10.1109/PIMRC.2009.5449979

T. Kim, N. Vaidya, Young-Bae Ko

引用次数: 3

Multipath decision fusion for low complexity UWB-IR non-coherent receivers 低复杂度UWB-IR非相干接收机的多径决策融合

2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2009-09-01 DOI: 10.1109/PIMRC.2009.5450186

B. Miscopein, J. Schwoerer, J. Gorce

引用次数: 3

Full-rate precoding in V-BLAST with angle parameter feedback 带角度参数反馈的V-BLAST全速率预编码

2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2009-09-01 DOI: 10.1109/PIMRC.2009.5450067

Somsubhra Barik, S. K. Mohammed, A. Chockalingam, B. Rajan

引用次数: 2

Latent state models of primary user behavior for opportunistic spectrum access 机会频谱接入主要用户行为的潜在状态模型

2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2009-09-01 DOI: 10.1109/PIMRC.2009.5450037

J. Pajarinen, J. Peltonen, M. Uusitalo, A. Hottinen

引用次数: 6

An adaptive HARQ algorithm in MIMO systems MIMO系统中的自适应HARQ算法

2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2009-09-01 DOI: 10.1109/PIMRC.2009.5450255

Jiming Chen, G. Shen, Shan Jin

引用次数: 3

On using network coding in multi hop wireless networks 网络编码在多跳无线网络中的应用

2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2009-09-01 DOI: 10.1109/PIMRC.2009.5450123

Golnaz Karbaschi, A. C. Viana, Steven Martin, K. A. Agha

{"title":"On using network coding in multi hop wireless networks","authors":"Golnaz Karbaschi, A. C. Viana, Steven Martin, K. A. Agha","doi":"10.1109/PIMRC.2009.5450123","DOIUrl":"https://doi.org/10.1109/PIMRC.2009.5450123","url":null,"abstract":"This paper studies the unfairness issues of network coding in multi hop wireless networks. Most of the work on network coding focuses on the obtained throughput gain. They show that mixing lineally the packets at the intermediate nodes is capacity-achieving. However, network coding schemes designed only to maximize the throughput could be unfairly biased. The reason is that by mixing different flows, packets destined to one destination in order to be decoded need to wait for the reception of the whole mixed set of encoded packets that may be totally independent in terms of final destination. This may lead to highly unfair delay for small block data. To mitigate this unfairness, relay nodes may mix only packets going to the same destination. We call this strategy FairMix. Although FairMix may limit the maximum attainable throughput, it aims to make distinct for decoding delay of each destination corresponding to the size of the data block. In order to investigate this trade off, we compare the FairMix performance with a naive network coding which mixes packets destined to different destinations. The simulation under lossy wireless links, limited memory and bandwidth resources, and different block sizes shows that FairMix is effective in improving fairness among destinations in comparison to naive network coding.","PeriodicalId":110448,"journal":{"name":"2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123493588","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: 10

Cooperative regions for decode and forward strategies over Rayleigh fading channels 瑞利衰落信道上解码和转发策略的合作区域

2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2009-09-01 DOI: 10.1109/PIMRC.2009.5449923

Jianfei Cao, Z. Zhong, B. Ai, Dongmei Zhao

引用次数: 1

Uplink base station cooperation by iterative distributed interference subtraction 基于迭代分布式干扰减法的上行基站合作

2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2009-09-01 DOI: 10.1109/PIMRC.2009.5450217

M. Grieger, P. Marsch, G. Fettweis

{"title":"Uplink base station cooperation by iterative distributed interference subtraction","authors":"M. Grieger, P. Marsch, G. Fettweis","doi":"10.1109/PIMRC.2009.5450217","DOIUrl":"https://doi.org/10.1109/PIMRC.2009.5450217","url":null,"abstract":"The capacity of today's cellular mobile communications systems is mainly limited by inter-cell interference. Multi-cell joint transmission or joint detection schemes are means to overcome this limitation and to actively exploit signal propagation across cell borders rather than treating it as noise. A major downside to multi-cell signal processing is the additional backhaul rate that is required to exchange information among cooperating base stations. Hence, cooperation schemes are desired that efficiently utilize the available backhaul rate. In the cellular uplink, one promising option to mitigate interference and thus to significantly increase the efficiency of spectrum usage is the exchange of decoded messages among base station, an information that can be used to subtract interference prior to the decoding of further messages. In this work, this distributed interference subtraction scheme is extended by allowing multiple iterative information exchanges among base stations. Possible gains of this strategy in terms of achievable data rates and required backhaul rates are explored from an information theoretical point of view.","PeriodicalId":110448,"journal":{"name":"2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116285678","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: 11