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2010 IEEE 71st Vehicular Technology Conference最新文献

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Exploiting Tracking Area List for Improving Signaling Overhead in LTE 利用跟踪区域列表提高LTE信令开销
2010 IEEE 71st Vehicular Technology Conference Pub Date : 2010-05-16 DOI: 10.1109/VETECS.2010.5494016
S. M. Razavi, D. Yuan, F. Gunnarsson, Johan Moe
{"title":"Exploiting Tracking Area List for Improving Signaling Overhead in LTE","authors":"S. M. Razavi, D. Yuan, F. Gunnarsson, Johan Moe","doi":"10.1109/VETECS.2010.5494016","DOIUrl":"https://doi.org/10.1109/VETECS.2010.5494016","url":null,"abstract":"Reducing the overhead required for tracing mobile devices is one of the major aspects in the study of mobility management of a cellular network. The Long Term Evolution (LTE) systems give a more flexible configuration of Tracking Area (TA) design by means of Tracking Area List (TAL). Being a novel concept, TAL goes beyond the capability of the conventional TA approach. Although TAL is expected to be able to reduce the overall signaling overhead by overcoming a couple of major limitations of the conventional TA concept, how to apply TAL in large scale networks, remains unexplored. In this paper, we present a novel approach for allocating and assigning TA lists. The approach does not require any data other than what is needed for conventional TA design. We present numerical results to illustrate the approach for a realistic network of Lisbon city. The experiments demonstrate the ability of TAL in reducing the signaling overhead compared to the conventional TA concept.","PeriodicalId":325246,"journal":{"name":"2010 IEEE 71st Vehicular Technology Conference","volume":"121 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128491204","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: 44
Utility Based Adaptive Scheduling Algorithm for Heterogeneous Services in Multiuser MIMO-Relay Systems 多用户mimo中继系统中基于效用的异构业务自适应调度算法
2010 IEEE 71st Vehicular Technology Conference Pub Date : 2010-05-16 DOI: 10.1109/VETECS.2010.5494010
Yushan Pei, Tong Wu, Y. Wang, Hui Tian
{"title":"Utility Based Adaptive Scheduling Algorithm for Heterogeneous Services in Multiuser MIMO-Relay Systems","authors":"Yushan Pei, Tong Wu, Y. Wang, Hui Tian","doi":"10.1109/VETECS.2010.5494010","DOIUrl":"https://doi.org/10.1109/VETECS.2010.5494010","url":null,"abstract":"In this paper, heterogeneous services in multiuser multiple-input multiple-output (MIMO)-Relay systems are investigated, where the relays work in amplify-and-forward mode. A utility based adaptive scheduling algorithm is proposed, which aims to maximize user satisfaction as well as system spectral efficiency. Joint optimal carriers and spatial subchannels allocation is considered based on the proposed utility function, and two factors ratio and w are introduced in order to differentiate QoS and users. Moreover, a suboptimal solution is also presented for the sake of decreasing computational complexity and processing delay. Simulation results show that the proposed strategy can guarantee QoS of multiple services with a tolerable decline in terms of spectral effciency compared with traditional maximum carrier/interference (MCI) algorithm. Besides, the complexity can be reduced obviously by utilizing the suboptimal scheme, which achieves nearly the same performance compared with the optimal solution.","PeriodicalId":325246,"journal":{"name":"2010 IEEE 71st Vehicular Technology Conference","volume":"138 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128738091","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: 0
Efficient Channel Quality Feedback Signaling Using Transform Coding and Bit Allocation 利用变换编码和位分配的有效信道质量反馈信令
2010 IEEE 71st Vehicular Technology Conference Pub Date : 2010-05-16 DOI: 10.1109/VETECS.2010.5493837
Behrooz Makki, T. Eriksson
{"title":"Efficient Channel Quality Feedback Signaling Using Transform Coding and Bit Allocation","authors":"Behrooz Makki, T. Eriksson","doi":"10.1109/VETECS.2010.5493837","DOIUrl":"https://doi.org/10.1109/VETECS.2010.5493837","url":null,"abstract":"Recently, substantial attention has been paid to compress the channel quality information feedback while preserving most of its relevant information, as required for Adaptive Modulation and Coding (AMC). This paper compares the performance of some lossy feedback compression methods and, particularly, investigate the effect of bit allocation on their performance. Simulation results show that the Discrete Cosine Transform (DCT) approach, along with our proposed bit allocation method, leads to the best feedback compression performance.","PeriodicalId":325246,"journal":{"name":"2010 IEEE 71st Vehicular Technology Conference","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129639853","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
To Piggyback or Not to Piggyback Acknowledgments? 要不要捎带致谢?
2010 IEEE 71st Vehicular Technology Conference Pub Date : 2010-05-16 DOI: 10.1109/VETECS.2010.5493905
Tsern-Huei Lee, Yaw-Wen Kuo, Yu-Wen Huang, Yung-Hsiang Liu
{"title":"To Piggyback or Not to Piggyback Acknowledgments?","authors":"Tsern-Huei Lee, Yaw-Wen Kuo, Yu-Wen Huang, Yung-Hsiang Liu","doi":"10.1109/VETECS.2010.5493905","DOIUrl":"https://doi.org/10.1109/VETECS.2010.5493905","url":null,"abstract":"Piggyback is an effective way to reduce the MAC protocol overhead of wireless networks. This paper considers the physical data rate and transmission bit error to derive the criterion of piggyback. Numerical results show that the improvement of piggyback can reach 40% for some cases. For given the bit error rate and the data rate, we also provide the criterion for every combination in a table.","PeriodicalId":325246,"journal":{"name":"2010 IEEE 71st Vehicular Technology Conference","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129743146","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: 7
Impact of User Selection Criteria on Performance of MIMO Detectors in Multiuser Systems 多用户系统中用户选择标准对MIMO检测器性能的影响
2010 IEEE 71st Vehicular Technology Conference Pub Date : 2010-05-16 DOI: 10.1109/VETECS.2010.5493829
Jinho Choi, F. Adachi
{"title":"Impact of User Selection Criteria on Performance of MIMO Detectors in Multiuser Systems","authors":"Jinho Choi, F. Adachi","doi":"10.1109/VETECS.2010.5493829","DOIUrl":"https://doi.org/10.1109/VETECS.2010.5493829","url":null,"abstract":"In this paper, we consider user selection criteria for various multiple input multiple output (MIMO) detectors to exploit the multiuser diversity. It is shown that the user selection criterion plays a crucial role in exploiting both multiuser and receive (or spatial) diversity. We also show that the maximum likelihood (ML) and even some low complexity suboptimal detectors (based on the lattice reduction (LR)) can achieve a full multiuser and receive diversity when the user selection criterion is properly chosen.","PeriodicalId":325246,"journal":{"name":"2010 IEEE 71st Vehicular Technology Conference","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126801115","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: 0
An Iterative Method for Carrier Frequency Offset Estimation in OFDM Systems via Scattered Pilots 一种基于分散导频的OFDM系统载波频偏估计迭代方法
2010 IEEE 71st Vehicular Technology Conference Pub Date : 2010-05-16 DOI: 10.1109/VETECS.2010.5493856
Lin Bai, Qinye Yin
{"title":"An Iterative Method for Carrier Frequency Offset Estimation in OFDM Systems via Scattered Pilots","authors":"Lin Bai, Qinye Yin","doi":"10.1109/VETECS.2010.5493856","DOIUrl":"https://doi.org/10.1109/VETECS.2010.5493856","url":null,"abstract":"The paper proposes a new iterative method to estimate the carrier frequency offset (CFO) with scattered pilot symbols inserted for channel estimation in orthogonal frequency division multiplexing (OFDM) systems. Assuming that the channel remains constant during a few consecutive OFDM blocks, the new method uses the correlations of the pilot symbols in these consecutive OFDM blocks. And an iterative concept is also employed to reduce the inter-carrier interference (ICI) that deteriorates the CFO estimation performance. After a few iterations, the proposed method can achieve the accuracy with no ICI. The mean square error (MSE) of the new method is analyzed and simulation results show the new method outperforms existing methods.","PeriodicalId":325246,"journal":{"name":"2010 IEEE 71st Vehicular Technology Conference","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126993071","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
Resource Efficient Opportunistic Multicast Scheduling for IPTV over Mobile WiMAX 基于移动WiMAX的IPTV资源高效机会组播调度
2010 IEEE 71st Vehicular Technology Conference Pub Date : 2010-05-16 DOI: 10.1109/VETECS.2010.5493956
Shiang-Ming Huang, Chih-Wei Huang, Po-Han Wu, Jenq-Neng Hwang, V. Gau, Yaw-Chung Chen
{"title":"Resource Efficient Opportunistic Multicast Scheduling for IPTV over Mobile WiMAX","authors":"Shiang-Ming Huang, Chih-Wei Huang, Po-Han Wu, Jenq-Neng Hwang, V. Gau, Yaw-Chung Chen","doi":"10.1109/VETECS.2010.5493956","DOIUrl":"https://doi.org/10.1109/VETECS.2010.5493956","url":null,"abstract":"Internet Protocol Television (IPTV) is an emerging and killer application for WiMAX networks, which takes advantage of multicasting mechanisms to efficiently deliver the video data to groups of subscribers. In this paper, we propose a Reception-rate-tracking Opportunistic Multicast Scheduling (ROMS) to enhance the performance of scalable IPTV layered multicasting over WiMAX networks. The proposed ROMS jointly considers the subscriber scheduling and resource allocation to achieve resource efficient multicasting. We validate our solution through theoretical analyses and empirical simulations. Our study indicates that the proposed solution outperforms the Slot-throughput-tracking Opportunistic Multicast Scheduling (SOMS) in terms of resource efficiency for 19.6%-33% in different subscriber group sizes.","PeriodicalId":325246,"journal":{"name":"2010 IEEE 71st Vehicular Technology Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130583595","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
Design and Analysis of Data-Aided Coarse Carrier Frequency Recovery in DVB-S2 DVB-S2数据辅助粗载波频率恢复的设计与分析
2010 IEEE 71st Vehicular Technology Conference Pub Date : 2010-05-16 DOI: 10.1109/VETECS.2010.5493911
Hua Wang, Chaoxing Yan, Jingming Kuang, N. Wu, Zesong Fei, Meng Zheng
{"title":"Design and Analysis of Data-Aided Coarse Carrier Frequency Recovery in DVB-S2","authors":"Hua Wang, Chaoxing Yan, Jingming Kuang, N. Wu, Zesong Fei, Meng Zheng","doi":"10.1109/VETECS.2010.5493911","DOIUrl":"https://doi.org/10.1109/VETECS.2010.5493911","url":null,"abstract":"An improved data-aided (DA) frequency error detector (FED) and a frequency lock detector are proposed under large frequency offset for Digital Video Broadcasting Satellite Second Generation (DVB-S2) system. Computer simulations results show that the proposed error detector can increase the frequency acquisition range and decrease the acquisition time without complexity increase. Its closed-loop normalized frequency root mean square error (RMSE) improves at least 1.5 dB compared with that of conventional error detector. The proposed lock detector shows good lock indication. Its modified version can save more symbols to indicate the locking status.","PeriodicalId":325246,"journal":{"name":"2010 IEEE 71st Vehicular Technology Conference","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120844287","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
A Sub-Band Based Technique for Low Power Medium Data Rate Ultra Wide Band Communication 基于子带的低功率中数据速率超宽带通信技术
2010 IEEE 71st Vehicular Technology Conference Pub Date : 2010-05-16 DOI: 10.1109/VETECS.2010.5493895
Kiran Bynam, J. P. Nair, D. Sen, R. Sinha, Arun Naniyat
{"title":"A Sub-Band Based Technique for Low Power Medium Data Rate Ultra Wide Band Communication","authors":"Kiran Bynam, J. P. Nair, D. Sen, R. Sinha, Arun Naniyat","doi":"10.1109/VETECS.2010.5493895","DOIUrl":"https://doi.org/10.1109/VETECS.2010.5493895","url":null,"abstract":"A sub-band based ultra wideband (SUWB) system is proposed. The technique provides scope for using the ultra wideband bandwidth efficiently by exploiting the available link margin for short range communications. The bandwidth of 500 MHz or more is divided into a fixed number of sub-bands. The data transmission scheme over multiple sub-bands can be designed to achieve higher data rate, higher reliability or support multi-user access. The SUWB system facilitates low power implementations by reducing the sampling rate requirements and also by the use of an orthogonal spreading code based interference rejection and multi-path cancellation receiver. The SUWB system avoids the need for individual down-conversion and filtering of the sub-bands. The requisite properties of the spreading codes are also provided. The simulation results in terms of the BER performance of the method for the IEEE 802.15.4a channel models are presented. The desirable performance is obtained for low and medium delay spread channels even without employing any equalization method.","PeriodicalId":325246,"journal":{"name":"2010 IEEE 71st Vehicular Technology Conference","volume":"36 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121011352","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
Using a Sensor Network to Localize a Source under Spatially Correlated Shadowing 利用传感器网络在空间相关阴影下定位源
2010 IEEE 71st Vehicular Technology Conference Pub Date : 2010-05-16 DOI: 10.1109/VETECS.2010.5493640
J. T. Flåm, G. Kraidy, Daniel J. Ryan
{"title":"Using a Sensor Network to Localize a Source under Spatially Correlated Shadowing","authors":"J. T. Flåm, G. Kraidy, Daniel J. Ryan","doi":"10.1109/VETECS.2010.5493640","DOIUrl":"https://doi.org/10.1109/VETECS.2010.5493640","url":null,"abstract":"This paper considers the use of a sensor network to estimate the position of a transmitting radio based on the received signal strength at the sensors. A generic path loss model which includes the effects of spatially correlated shadowing is assumed. A weighted likelihood (WL) estimator is proposed, which can be seen as a simplified minimum mean square error (MMSE) estimator. This estimator can be used for localizing a source in a static scenario or it can provide the initial position estimate of a tracking algorithm. The performance of the WL estimator is simulated, and robustness to erroneous assumptions about path loss exponent, shadowing variance and correlation distance is demonstrated.","PeriodicalId":325246,"journal":{"name":"2010 IEEE 71st Vehicular Technology Conference","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114202707","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
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