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2011 6th International ICST Conference on Communications and Networking in China (CHINACOM)最新文献

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Transmission efficient modulation based on constellation switching in wireless communication 无线通信中基于星座交换的传输高效调制
2011 6th International ICST Conference on Communications and Networking in China (CHINACOM) Pub Date : 2011-08-17 DOI: 10.1109/ChinaCom.2011.6158127
W. Lu, Desheng Wang, Yingzhuang Liu
{"title":"Transmission efficient modulation based on constellation switching in wireless communication","authors":"W. Lu, Desheng Wang, Yingzhuang Liu","doi":"10.1109/ChinaCom.2011.6158127","DOIUrl":"https://doi.org/10.1109/ChinaCom.2011.6158127","url":null,"abstract":"In this paper we propose a new efficient data modulation method, which is based on constellation switching modulation (CSM). The original bit stream is divided into sub-blocks, and each sub-block is modulated according to the constellation indicated by the constellation indicating bits (CIB) which are composed of data bits and parity bits. Error-correction coding (ECC) is used to produce the parity bits for the improvement of the robustness of constellation estimation and bit-error rate performance. The error bounds of constellation estimation are derived. Simulation results show that the proposed algorithm can improve the transmission efficiency by at most 50% and 25% compared with the conventional BPSK and QPSK respectively in Rayleigh channel while still maintaining almost the same or even better BER performance as conventional BPSK and QPSK.","PeriodicalId":339961,"journal":{"name":"2011 6th International ICST Conference on Communications and Networking in China (CHINACOM)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125761369","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: 3
A conception on the terahertz communication system for plasma sheath penetration 等离子体鞘层穿透太赫兹通信系统的构想
2011 6th International ICST Conference on Communications and Networking in China (CHINACOM) Pub Date : 2011-08-17 DOI: 10.1002/wcm.2225
Jin Li, Y. Pi, Xiaobo Yang
{"title":"A conception on the terahertz communication system for plasma sheath penetration","authors":"Jin Li, Y. Pi, Xiaobo Yang","doi":"10.1002/wcm.2225","DOIUrl":"https://doi.org/10.1002/wcm.2225","url":null,"abstract":"The signal of a hypersonic spacecraft entering the earth's atmosphere may be lost at a certain altitude transitorily. This phenomenon is called ‘blackout’, which is an important performance of aircraft design. Recently, with the development of the near spacecraft, the communication techniques under the plasma environment are more and more important, with the realization of which can we record, monitor, track and capture the near spacecraft. In this paper, we put forward an idea based on that the radiation from the terahertz communication system can penetrate the plasma sheath, to provide the theoretical basis for real-time communicating with the near spacecraft.","PeriodicalId":339961,"journal":{"name":"2011 6th International ICST Conference on Communications and Networking in China (CHINACOM)","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126195152","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: 17
An improved ER scheduling algorithm based spatial reuse scheme for mmWave WPANs 基于改进ER调度算法的毫米波无线局域网空间复用方案
2011 6th International ICST Conference on Communications and Networking in China (CHINACOM) Pub Date : 2011-08-17 DOI: 10.1109/ChinaCom.2011.6158195
Wei-xia Zou, Yucong Hu, Bin Li, Zheng Zhou, Y. Ye
{"title":"An improved ER scheduling algorithm based spatial reuse scheme for mmWave WPANs","authors":"Wei-xia Zou, Yucong Hu, Bin Li, Zheng Zhou, Y. Ye","doi":"10.1109/ChinaCom.2011.6158195","DOIUrl":"https://doi.org/10.1109/ChinaCom.2011.6158195","url":null,"abstract":"This article focuses on improving the system capacity of 60GHz wireless personal area networks (WPANs) and puts forward an effective spatial reuse scheme which combines the existing exclusive region (ER) based scheduling algorithm with simple power control. In the study, the concept of ER for concurrent transmissions is introduced first. Considering the large path loss in the millimeter-wave (mmWave) band and the characteristics of typical indoor multipath channels, we modify the signal propagation model as well as ER radius for 60GHz WPANs. Then we propose an improved ER based scheduling algorithm which adopts power control instead of constant transmitting power. In the algorithm, devices are assumed to receive data at the receiver sensitivity, which refers to the minimum receiving power to ensure the reliability for communications. Computer simulations evaluate an excellent performance of the proposed spatial reuse scheme at channel capacity. In addition, the impact of the receiver sensitivity on the system is discussed.","PeriodicalId":339961,"journal":{"name":"2011 6th International ICST Conference on Communications and Networking in China (CHINACOM)","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128038788","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
Performance of broadcast transmission from multiple vehicles in vehicle-roadside-vehicle relay network 车-路-车中继网络中多车广播传输性能研究
2011 6th International ICST Conference on Communications and Networking in China (CHINACOM) Pub Date : 2011-08-17 DOI: 10.1109/ChinaCom.2011.6158240
Kazuya Minato, Huiting Cheng, Y. Yamao
{"title":"Performance of broadcast transmission from multiple vehicles in vehicle-roadside-vehicle relay network","authors":"Kazuya Minato, Huiting Cheng, Y. Yamao","doi":"10.1109/ChinaCom.2011.6158240","DOIUrl":"https://doi.org/10.1109/ChinaCom.2011.6158240","url":null,"abstract":"Vehicle to vehicle (V2V) communication is regarded as an essential means to avoid traffic accidents and increase vehicle safety. However, reliability of the communications severely suffers from wireless propagation on the road. A vehicle-roadside-vehicle relay communication scheme has been proposed to improve the reliability of the V2V communications. The packet broadcast transmission performance of the proposed scheme with large number of transmitting vehicle stations around intersection is evaluated by computer simulations that assume fading, corner loss attenuation and carrier sense range. The combinations of two frequency bands, 700 MHz and 5.9 GHz, are also compared for the direct and relay transmissions. Simulated results show that the average packet reception ratio is remarkably improved with the proposed scheme regardless of number of the vehicle stations. The frequency combination of 700 MHz as vehicular station transmission and 5.9 GHz as relay station retransmission shows better performance.","PeriodicalId":339961,"journal":{"name":"2011 6th International ICST Conference on Communications and Networking in China (CHINACOM)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121542685","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: 15
Protocol Derivation System for the Needham-Schroeder family 李约瑟-施罗德家族的协议派生系统
2011 6th International ICST Conference on Communications and Networking in China (CHINACOM) Pub Date : 2011-08-17 DOI: 10.1002/sec.565
Junwei Zhang, Jianfeng Ma, Chao Yang
{"title":"Protocol Derivation System for the Needham-Schroeder family","authors":"Junwei Zhang, Jianfeng Ma, Chao Yang","doi":"10.1002/sec.565","DOIUrl":"https://doi.org/10.1002/sec.565","url":null,"abstract":"A framework consisting of the Protocol Derivation System (PDS) and Protocol Composition Logic (PCL) has been recently proposed by Datta et al. for the design and analysis of secure composition of cryptographic protocols. However, the PDS in this proposed framework can only be used for the protocols of the Station-to-Station family, which are signature-based authenticated Diffie-Hellman key exchange protocols. In this paper, the PDS is extended to support key exchange protocols using a Trusted Third Party and encryption based authentication such as those in the Needham-Schroeder family. This is achieved by means of adding new components, refinements and transformations to the PDS. In addition, the derivation graph of the Needham-Schroeder family is developed by using the extended PDS.","PeriodicalId":339961,"journal":{"name":"2011 6th International ICST Conference on Communications and Networking in China (CHINACOM)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122325347","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
Low-complexity probability generation algorithm for stochastic decoding of non-binary LDPC codes 非二进制LDPC码随机译码的低复杂度概率生成算法
2011 6th International ICST Conference on Communications and Networking in China (CHINACOM) Pub Date : 2011-08-17 DOI: 10.1109/ChinaCom.2011.6158121
Guanghua He, B. Bai
{"title":"Low-complexity probability generation algorithm for stochastic decoding of non-binary LDPC codes","authors":"Guanghua He, B. Bai","doi":"10.1109/ChinaCom.2011.6158121","DOIUrl":"https://doi.org/10.1109/ChinaCom.2011.6158121","url":null,"abstract":"Non-binary LDPC codes offer higher performances than their binary counterpart but suffer from highest decoding complexity. A solution to reduce the decoding complexity is the use of stochastic decoding algorithm, but the computational complexity of probability generation in the first step is very high. In this paper, we propose a simple method to fast generate the probability especially in high-order modulation schemes. Simulation results show that the proposed algorithm causes negligible performance degradation with reduction in computational complexity for stochastic decoding of non-binary LDPC codes, which gives some advantages in hardware implementation of the decoders.","PeriodicalId":339961,"journal":{"name":"2011 6th International ICST Conference on Communications and Networking in China (CHINACOM)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115067216","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
Asymptotic diversity order of single carrier cyclic prefix systems with frequency domain decision feedback equalizers 具有频域判决反馈均衡器的单载波循环前缀系统的渐近分集阶
2011 6th International ICST Conference on Communications and Networking in China (CHINACOM) Pub Date : 2011-08-17 DOI: 10.1109/ChinaCom.2011.6158213
Huiming Wang, Qinye Yin
{"title":"Asymptotic diversity order of single carrier cyclic prefix systems with frequency domain decision feedback equalizers","authors":"Huiming Wang, Qinye Yin","doi":"10.1109/ChinaCom.2011.6158213","DOIUrl":"https://doi.org/10.1109/ChinaCom.2011.6158213","url":null,"abstract":"Single carrier cyclic prefix system with frequency domain equalization (SC-CP-FDE) is an attractive technology for broadband wireless communications. In this paper, we investigate the outage probability and diversity order of an uncoded SC-CP system with frequency domain MMSE decision feedback equalizer (FD-DFE) in frequency-selective channels. Based on the linear prediction theory and spectral factorization theory, we give a different derivation and interpretation of the equalizer coefficients and the closed-form MMSE formula at the decision point of the equalizer, from which the asymptotic SINR is obtained when the block length N is sufficiently large compared to the channel length. Adopting outage analysis, we show that with MMSE-FD-DFE, the asymptotic achievable diversity order is Lc +1, where Lc is the number of independent channel paths, i.e., full multipath diversity is asymptotically achieved.","PeriodicalId":339961,"journal":{"name":"2011 6th International ICST Conference on Communications and Networking in China (CHINACOM)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116438096","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
Physical-aware topology construction and importance of underlying topological information in provider-independent overlays 物理感知的拓扑结构和提供者无关覆盖中底层拓扑信息的重要性
2011 6th International ICST Conference on Communications and Networking in China (CHINACOM) Pub Date : 2011-08-17 DOI: 10.1109/ChinaCom.2011.6158252
Xian Zhang, C. Phillips
{"title":"Physical-aware topology construction and importance of underlying topological information in provider-independent overlays","authors":"Xian Zhang, C. Phillips","doi":"10.1109/ChinaCom.2011.6158252","DOIUrl":"https://doi.org/10.1109/ChinaCom.2011.6158252","url":null,"abstract":"Overlay networks have been viewed as one of promising intermediary solutions to provide a supplement with strengthened performance to the existing “best efforts” Internet. Previous researches have shown that overlays constructed taking into consideration of the underlying network topology information perform better than those oblivious to those information. In this paper, we first propose a novel heuristic algorithm to solve the provider-independent overlay construction issue given accurate underlying topological information. However, exact physical topology is usually shielded from the Internet users especially in multiple-domain scenarios and difficult to obtain. One of the issues is the Anonymous Routers (AR) presence in the Internet Thus only inaccurate underlying topologies can be obtained. Even if AR resolution algorithms are implemented, there is no guarantee that it can infer an accurate topology. Therefore, we take a step further to study the impact of inaccurate underlying topological information on overlay topology construction. Initial results obtained show that the availability and accuracy of underlying topology information has impact on its effectiveness in constructing a good overlay topology and cautions are needed when taking advantage of the acquired inaccurate underlying topology information.","PeriodicalId":339961,"journal":{"name":"2011 6th International ICST Conference on Communications and Networking in China (CHINACOM)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116486878","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
A novel puncturing scheme for rate-compatible low-density parity-check codes 一种新的率兼容低密度奇偶校验码的穿刺方案
2011 6th International ICST Conference on Communications and Networking in China (CHINACOM) Pub Date : 2011-08-17 DOI: 10.1109/ChinaCom.2011.6158218
Xiyuan Chen, Honglin Zhao, Yongkui Ma, Xiangnan Liu
{"title":"A novel puncturing scheme for rate-compatible low-density parity-check codes","authors":"Xiyuan Chen, Honglin Zhao, Yongkui Ma, Xiangnan Liu","doi":"10.1109/ChinaCom.2011.6158218","DOIUrl":"https://doi.org/10.1109/ChinaCom.2011.6158218","url":null,"abstract":"In this paper, we present an effective puncturing scheme for rate-compatible low-density parity-check (RC-LDPC) codes. Our scheme is based on the criterion of maximum average girth which is an important performance parameter for the construction of RC-LDPC codes. We select a pattern wherein the punctured bits are far apart from each other in the Tanner graph of the codes by sorting algorithm, and then puncture the bits with the maximum average girth. In the process, there is no need to do any optimization. By simulations, the proposed codes show good performance under puncturing over a wide range of rates. The introduced puncturing criterion results in lower bit error rate and error floor when compared with random puncturing. Moreover, the performance of proposed method is similar to the direct structured LDPC codes by progressive edge growth (PEG). But the scheme is very simple to implement and lowers the complexity of encoding and decoding.","PeriodicalId":339961,"journal":{"name":"2011 6th International ICST Conference on Communications and Networking in China (CHINACOM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130626763","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
Energy efficiency improvements through heterogeneous networks in diverse traffic distribution scenarios 在不同流量分布场景下，通过异构网络提高能源效率
2011 6th International ICST Conference on Communications and Networking in China (CHINACOM) Pub Date : 2011-08-17 DOI: 10.1109/ChinaCom.2011.6158246
S. Tombaz, Muhammad Usman, J. Zander
{"title":"Energy efficiency improvements through heterogeneous networks in diverse traffic distribution scenarios","authors":"S. Tombaz, Muhammad Usman, J. Zander","doi":"10.1109/ChinaCom.2011.6158246","DOIUrl":"https://doi.org/10.1109/ChinaCom.2011.6158246","url":null,"abstract":"Energy Efficiency in cellular mobile radio networks has recently gained great interest in the research community. Besides the positive effect on global climate change, lowering power consumption of mobile networks is beneficial in terms of decreasing the operational cost for network operators. In this regard, the development of more energy efficient hardware and software components aside, effect of different deployment strategies on energy efficiency are also studied in the literature. In this paper, we investigate the energy efficiency improvements through different heterogeneous networks for both uniform and non-uniform traffic distribution scenarios. It has been shown that, using small power low base stations at the cell border decreases the power consumption significantly for both traffic scenarios and the most energy efficient deployment strategy highly depends on the area throughput demand of the system.","PeriodicalId":339961,"journal":{"name":"2011 6th International ICST Conference on Communications and Networking in China (CHINACOM)","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130704877","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: 53
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