2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications最新文献_第4页

Efficient power and subcarrier allocation for OFDMA-based relay networks 基于ofdma中继网络的有效功率和子载波分配

2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2009-09-13 DOI: 10.1109/PIMRC.2009.5450252

Yuwen Pan, A. Nix, M. Beach

引用次数: 1

EARTH — Energy Aware Radio and Network Technologies 地球-能源意识无线电和网络技术

2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2009-09-13 DOI: 10.1109/PIMRC.2009.5449938

M. Gruber, O. Blume, D. Ferling, D. Zeller, M. Imran, E. Strinati

引用次数: 233

Cognitive radio with relay of a primary signal and piggyback modulation 具有主信号中继和背驮式调制的认知无线电

2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2009-09-13 DOI: 10.1109/PIMRC.2009.5450056

Jun Naganawa, T. Yamazato, M. Katayama

引用次数: 2

Training sequence-based distributed space-time block codes with frequency domain equalization 基于频域均衡训练序列的分布式空时分组码

2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2009-09-13 DOI: 10.1109/PIMRC.2009.5449910

Le-Nam Tran, Quoc-Tuan Vien, E. Hong

{"title":"Training sequence-based distributed space-time block codes with frequency domain equalization","authors":"Le-Nam Tran, Quoc-Tuan Vien, E. Hong","doi":"10.1109/PIMRC.2009.5449910","DOIUrl":"https://doi.org/10.1109/PIMRC.2009.5449910","url":null,"abstract":"This paper proposes a new distributed space-time block code (DSTBC) for single-carrier communications systems based on training sequence (TS). The proposed DSTBC is devised for amplify-and-forward (AF) relay networks over frequency selective fading channels. The data is transmitted from the source to the destination by a block-wise manner, resembling the block level of Alamouti scheme. A TS is padded to the tail of each information-bearing data block. The use of TS in this paper is twofold. First, it plays as a cyclic extension, thereby allowing us to construct a low-complexity receiver in the frequency domain. Second, it can be used for channel estimation. In contrast to zero padding technique, the introduction of TS makes it difficult to decouple the detection of data blocks. To recover the orthogonality of the equivalent space-time channel, we carefully treat the interference induced by the training sequences. As the second contribution, a least square (LS) channel estimation approach is also proposed for the proposed DSTBC. The optimal training sequences are designed to minimize the effect of additive noise. Bit-error-rate (BER) performance comparison is carried out by computer simulation.","PeriodicalId":110448,"journal":{"name":"2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131882411","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: 4

Multiuser time reversal UWB communication system: A modified transmission approach 多用户时反转超宽带通信系统:一种改进的传输方法

2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2009-09-13 DOI: 10.1109/PIMRC.2009.5450198

I. Naqvi, A. Khaleghi, G. E. Zein

引用次数: 5

Impact of realistic MIMO physical layer on video transmission over mobile Ad Hoc network 真实MIMO物理层对移动Ad Hoc网络视频传输的影响

2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2009-09-13 DOI: 10.1109/PIMRC.2009.5450260

W. Hamidouche, R. Vauzelle, C. Olivier, Y. Pousset, C. Perrine

{"title":"Impact of realistic MIMO physical layer on video transmission over mobile Ad Hoc network","authors":"W. Hamidouche, R. Vauzelle, C. Olivier, Y. Pousset, C. Perrine","doi":"10.1109/PIMRC.2009.5450260","DOIUrl":"https://doi.org/10.1109/PIMRC.2009.5450260","url":null,"abstract":"In this paper we investigate the impact of a realistic physical layer on the H.264/AVC video transmission over Ad Hoc networks in urban environment. We propose a realistic Multiple Input Multiple Output (MIMO) physical layer which combines a determinist propagation model and a fine-grained model of wireless transmission errors. The determinist propagation model takes into account all the environmental characteristics (geometric and electric) and provides all the information of the multi-path channel (received power, complex impulse response). The wireless transmission errors model is based on a BER computation. The BER is calculated according to 802.11n standard to evaluate MIMO wireless links and, then, is compared to both SISO configuration and an existing wireless errors model using empirical propagation models. In the case of a SISO configuration, the BER is computed according to 802.11a standard. The simulation results show clearly a significant difference in term of QoS for the video transmission using realistic and empirical physical layer. In addition, the MIMO system, compared to a SISO one, improves the quality of links in the network and, thus, provides a better QoS for video transmission over Ad Hoc networks.","PeriodicalId":110448,"journal":{"name":"2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114740133","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: 20

A coordinated multi-cell MU-MIMO scheme for the downlink LTE-advanced system 一种用于下行LTE-advanced系统的协调多小区MU-MIMO方案

2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2009-09-01 DOI: 10.1109/PIMRC.2009.5449903

Li Zeng, Jing Jin, Yafeng Wang, Dacheng Yang

{"title":"A coordinated multi-cell MU-MIMO scheme for the downlink LTE-advanced system","authors":"Li Zeng, Jing Jin, Yafeng Wang, Dacheng Yang","doi":"10.1109/PIMRC.2009.5449903","DOIUrl":"https://doi.org/10.1109/PIMRC.2009.5449903","url":null,"abstract":"To further improve and satisfy the spectral efficiency requirements addressed in LTE-Advanced system, in this paper, a Coordinated Multi-Cell MU-MIMO scheme is proposed to achieve this goal, especially to enhance the cell-edge user(the 5% of user throughput) throughput substantially. In our proposed cooperative scheme, we adopt multi-cell block diagonalization (BD) algorithm to perform joint procession across the evolved coordinated eNodeBs to mitigate the inter-cell interference (ICI) so as to enhance the whole system performance. Proportional fair (PF) scheduling algorithm is also applied to guarantee the fairness between the users. Furthermore, different numbers of antennas employed at the eNodeB are considered and their affects on our proposed cooperative scheme are analyzed as well. Of course, a system simulation platform is established for the downlink LTE-Advanced system to evaluate the performance of this scheme from the system level perspective. Ultimately, from the simulation results, we can draw that the coordinated multi-cell MU-MIMO scheme we proposed is an effective approach to improve the spectral efficiency prominently and much more spectral efficient comparing to conventional non-cooperative MIMO scheme for the downlink LTE-Advanced system.","PeriodicalId":110448,"journal":{"name":"2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"53 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":"115315801","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: 5

Frequency domain IQ imbalance estimation in the presence of DC offset and frequency offset 存在直流偏置和频率偏置的频域IQ不平衡估计

2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2009-09-01 DOI: 10.1109/PIMRC.2009.5450294

M. Inamori, Shuzo Takayama, Y. Sanada

引用次数: 1

A study on a cooperative relay using joint network and channel coding in simple triangular network topology 简单三角网络拓扑下联合网络和信道编码协同中继的研究

2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2009-09-01 DOI: 10.1109/PIMRC.2009.5450236

Masatoshi Mizobuchi, S. Ibi, S. Sampei

{"title":"A study on a cooperative relay using joint network and channel coding in simple triangular network topology","authors":"Masatoshi Mizobuchi, S. Ibi, S. Sampei","doi":"10.1109/PIMRC.2009.5450236","DOIUrl":"https://doi.org/10.1109/PIMRC.2009.5450236","url":null,"abstract":"This paper proposes a cooperative relay transmission exploiting a concatenated structure composed of a simple exclusive OR (XOR) network code and channel codes. A main contribution of this paper is to clarify the joint network-and-channel coding combined with an iterative decoding is effective in providing highly reliable wireless communications even in the case where distances from one destination node to two source nodes are not the same in the case of triangular topology network. In this case, it is subject to imbalanced signal powers at the destination node, resulting in imbalanced link quality. In this paper, we focus on an analogy between the triangular topology network and a quaternary PSK (QPSK) symbol with a rectangular shape, i.e., imbalanced the in-phase and quadrature-phase (I-Q). After demonstrating that the rectangular QPSK has a potential to detect signals with high accuracy by iterative decoding, a configuration of the cooperative relay to be proposed in this paper is revealed. Computer simulation confirms that both the rectangular QPSK and the cooperation are effective to solve the imbalanced problem.","PeriodicalId":110448,"journal":{"name":"2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"103 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":"123164603","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: 1

Performance comparison of the 3GPP/3GPP2 SCM and ITU-R IMT-Advanced MIMO channel models 3GPP/3GPP2单片机与ITU-R IMT-Advanced MIMO信道模型的性能比较

2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2009-09-01 DOI: 10.1109/PIMRC.2009.5450247

Chia-Chin Chong, F. Watanabe, H. Inamura, K. Kitao, T. Imai

引用次数: 7