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2010 IEEE 12th International Conference on Communication Technology最新文献

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Performance analysis of a digital feedback AGC with constant settling time 恒定沉降时间数字式反馈AGC的性能分析
2010 IEEE 12th International Conference on Communication Technology Pub Date : 2010-11-01 DOI: 10.1109/ICCT.2010.5688549
Anbang Liu, Jianping An, Aihua Wang
{"title":"Performance analysis of a digital feedback AGC with constant settling time","authors":"Anbang Liu, Jianping An, Aihua Wang","doi":"10.1109/ICCT.2010.5688549","DOIUrl":"https://doi.org/10.1109/ICCT.2010.5688549","url":null,"abstract":"A digital feedback automatic gain control (DFAGC) with the constant settling time is presented for the stability of the Phase Locked Loop in the QPSK demodulation. The DFAGC consists of an exponential gain controlled amplifier and a logarithmic amplifier, which gets the constant gain settling time independent of the input signal amplitude. This scheme allows using the linear system theory directly analyze the DAGC performance. So the mathematical model and the backward difference equation are given to investigate the settling time, and the transfer function given to obtain the transient response and the DFAGC tracking performance. Finally, it is verified by simulations that the analysis results closely coincide with the settling time and the DFAGC characteristic in high SNR, and the linear system theory analysis method concisely gives the insight of the proposed scheme.","PeriodicalId":253478,"journal":{"name":"2010 IEEE 12th International Conference on Communication Technology","volume":"267 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122110638","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: 9
Cross entropy based spectrum sensing 基于交叉熵的频谱传感
2010 IEEE 12th International Conference on Communication Technology Pub Date : 2010-11-01 DOI: 10.1109/ICCT.2010.5688964
Junrong Gu, Wenlong Liu, Sungjeen Jang, J. Kim
{"title":"Cross entropy based spectrum sensing","authors":"Junrong Gu, Wenlong Liu, Sungjeen Jang, J. Kim","doi":"10.1109/ICCT.2010.5688964","DOIUrl":"https://doi.org/10.1109/ICCT.2010.5688964","url":null,"abstract":"In this paper, we propose a spectrum sensing method by exploiting the cross entropy. Spectrum sensing is a critical step for Cognitive Radio (CR) to have a successful communication. Intensive interests have been paid to the improvement of spectrum sensing. However, the relationship of previous and current detected data sets of Primary User (PU) has not been considered by most of the spectrum sensing methods. We propose cross entropy based spectrum sensing to scrutinize this relationship. As cross entropy based spectrum sensing has taken extra information into account, its ability to detect PU signal is strengthened and robust, which leads to a superior spectrum sensing performance. The simulation results have validated this point.","PeriodicalId":253478,"journal":{"name":"2010 IEEE 12th International Conference on Communication Technology","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114957111","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
AZCVN: A novel energy equilibrium routing algorithm for WSNs AZCVN:一种新的无线传感器网络能量平衡路由算法
2010 IEEE 12th International Conference on Communication Technology Pub Date : 2010-11-01 DOI: 10.1109/icct.2010.5688832
Yueyue Gu, Guangwei Bai, Lei Cao
{"title":"AZCVN: A novel energy equilibrium routing algorithm for WSNs","authors":"Yueyue Gu, Guangwei Bai, Lei Cao","doi":"10.1109/icct.2010.5688832","DOIUrl":"https://doi.org/10.1109/icct.2010.5688832","url":null,"abstract":"","PeriodicalId":253478,"journal":{"name":"2010 IEEE 12th International Conference on Communication Technology","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122715274","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
A novel 174-240 MHz two gain mode LNA for DAB applications 一种用于DAB应用的新型174- 240mhz双增益模式LNA
2010 IEEE 12th International Conference on Communication Technology Pub Date : 2010-11-01 DOI: 10.1109/ICCT.2010.5688956
Jiang-Hong Han, Zhigong Wang, Xu Jian
{"title":"A novel 174-240 MHz two gain mode LNA for DAB applications","authors":"Jiang-Hong Han, Zhigong Wang, Xu Jian","doi":"10.1109/ICCT.2010.5688956","DOIUrl":"https://doi.org/10.1109/ICCT.2010.5688956","url":null,"abstract":"This paper presents a novel two gain mode LNA for DAB band III (174–240MHz) applications. The combination of a broadband LNA and a transmission gate realize a new two gain mode topology. In the high gain mode, an inductor-less broadband LNA employing noise-cancelling technique was used, which can easily meet the requirements of low noise, high gain, and input impedance. In the low gain mode, the LNA is bypassed and powered down, and the input signal directly reaches the output through the transmission gate. In this way, a better linearity can be achieved. Designed with the SMIC 0.18-µm CMOS process, the simulation results exhibits a maximum gain of 15 dB, a minimum gain of −1.6dB. Also, the LNA has excellent noise performance at high gain mode; A noise figure of 2.1dB is achieved in this work. Especially, at low gain mode the input 1-dB compression point is 9.5 dBm.","PeriodicalId":253478,"journal":{"name":"2010 IEEE 12th International Conference on Communication Technology","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122893109","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 joint design of network coding and channel coding for multiple access channel 一种针对多址信道的网络编码和信道编码联合设计
2010 IEEE 12th International Conference on Communication Technology Pub Date : 2010-11-01 DOI: 10.1109/ICCT.2010.5689279
Xuanmin Lu, Qiaoyun Qiu, Heng Wu
{"title":"A joint design of network coding and channel coding for multiple access channel","authors":"Xuanmin Lu, Qiaoyun Qiu, Heng Wu","doi":"10.1109/ICCT.2010.5689279","DOIUrl":"https://doi.org/10.1109/ICCT.2010.5689279","url":null,"abstract":"Network coding is becoming more and more popular in recent years for its ability to improve largely network throughput and robustness. In this paper, a joint physical network coding and channel coding implementation design for multiple-access channel is proposed. It takes advantage of the linearity of LDPC and network coding and SISO module, not only can reduce the complexity of codec, but also can obtain a good performance even in the high SNR. The simulation results show that the proposed design is easy to implement and its performance is close to the Upper limit of the channel capacity, and it can achieve 1.6 times gain over the traditional design.","PeriodicalId":253478,"journal":{"name":"2010 IEEE 12th International Conference on Communication Technology","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125217016","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
Packet reachability of VANET in bidirectional road scenario 双向道路场景下VANET的分组可达性
2010 IEEE 12th International Conference on Communication Technology Pub Date : 2010-11-01 DOI: 10.1109/ICCT.2010.5689192
Panguo Fan, Yuguang Li, Guoqing Zhang, Jinghua Li, Dejun Mu
{"title":"Packet reachability of VANET in bidirectional road scenario","authors":"Panguo Fan, Yuguang Li, Guoqing Zhang, Jinghua Li, Dejun Mu","doi":"10.1109/ICCT.2010.5689192","DOIUrl":"https://doi.org/10.1109/ICCT.2010.5689192","url":null,"abstract":"Bidirectional road is the basic and ordinary scenario of Vehicular Ad hoc Network (VANET) which is an emerging and challenging research applying mobile ad hoc technology to transportation system. According to different forwarding mechanisms in routing protocol of such network, the connections are divided into end-to-end (E2E) type and Store-Carry-Forward (SCF) type. The packet reachability probabilities, the representative of network connectivity, of both connection types are calculated and compared quantitatively using our proposed probability model. The results are validated by simulations in our experiments. Our work provides important and useful reference basis for network and routing protocol designers.","PeriodicalId":253478,"journal":{"name":"2010 IEEE 12th International Conference on Communication Technology","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126149505","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
Test trial of a new broadband access technology based on coaxial cable network 一种基于同轴电缆网络的新型宽带接入技术的试验研究
2010 IEEE 12th International Conference on Communication Technology Pub Date : 2010-11-01 DOI: 10.1109/ICCT.2010.5688859
Shuo Wei, Li Li, Chunhua Wang, Weijie Fan
{"title":"Test trial of a new broadband access technology based on coaxial cable network","authors":"Shuo Wei, Li Li, Chunhua Wang, Weijie Fan","doi":"10.1109/ICCT.2010.5688859","DOIUrl":"https://doi.org/10.1109/ICCT.2010.5688859","url":null,"abstract":"A test trail of the Ethernet Coax Access Network (ECAN) is presented and discussed in the paper. ECAN technology is a broadband access technology based on the existing coaxial network. ECAN employs IEEE802.3ah in the media access control (MAC) layer and transmits the frequency-multiplexed TV signals and multi-level vestige side band (VSB) modulated data signal, which occupies the low-frequency band over the coaxial network. The test trial consists of one coaxial line terminal (CLT), and 24 coaxial network units (CNUs). The test trial supplies the subscribers with VOD and IPTV of HDTV class, high bit-rate Internet access and the ordinary broadcast TV. The noise property of the test trial is also measured and discussed. The test results prove that ECAN is featured with high access capacity, good anti-noise ability, and strong potential of being a powerful competitor in the broadband access over coax.","PeriodicalId":253478,"journal":{"name":"2010 IEEE 12th International Conference on Communication Technology","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126544978","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
A novel efficient detection scheme for hybrid STBC in MIMO-OFDM systems 一种新的MIMO-OFDM系统中混合STBC检测方法
2010 IEEE 12th International Conference on Communication Technology Pub Date : 2010-11-01 DOI: 10.1109/ICCT.2010.5688581
Yu-Jin Song, Seong-Weon Ko, Hyun-Jin Park, Hun-Hee Lee, Hyoung-Kyu Song
{"title":"A novel efficient detection scheme for hybrid STBC in MIMO-OFDM systems","authors":"Yu-Jin Song, Seong-Weon Ko, Hyun-Jin Park, Hun-Hee Lee, Hyoung-Kyu Song","doi":"10.1109/ICCT.2010.5688581","DOIUrl":"https://doi.org/10.1109/ICCT.2010.5688581","url":null,"abstract":"To obtain both spatial multiplexing and diversity gains simultaneously, hybrid system was introduced in MIMO-OFDM system, which combines space time coding (STC) and spatial division multiplexing (SDM) schemes. Therefore, hybrid system achieve both multiplexing and diversity gains by reducing a little performance. Representative hybrid system is consisting as space time block coding (STBC) and spatial multiplexing (SM) symbols. However,the hybrid system has the almost same bit error rate (BER) performance as decision feedback equalization (DFE) and ordered successive interference cancellation (OSIC). Therefore, we should improve performance of hybrid system. In this paper, we propose efficient detection scheme for MIMO-OFDM system with hybrid STBC symbols.","PeriodicalId":253478,"journal":{"name":"2010 IEEE 12th International Conference on Communication Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130034684","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
A 3-layer architecture key distribution scheme of immeasurable information sharing network 一种三层体系结构的不可量信息共享网络密钥分发方案
2010 IEEE 12th International Conference on Communication Technology Pub Date : 2010-11-01 DOI: 10.1109/ICCT.2010.5689147
Dijie Yang, Jie Xu, Keping Long
{"title":"A 3-layer architecture key distribution scheme of immeasurable information sharing network","authors":"Dijie Yang, Jie Xu, Keping Long","doi":"10.1109/ICCT.2010.5689147","DOIUrl":"https://doi.org/10.1109/ICCT.2010.5689147","url":null,"abstract":"Recent years, a new immeasurable information sharing network (IISN) has been supposed to be the complementarities for the next generation network. How to ensure the security of this network, and how to perform the key management for authorized clients? This paper proposed a new three-layer architecture key distribution scheme of IISN based on condition access system. Our scheme in this paper is to fully utilize the special 3-layers architecture of IISN to design the key distribution model. The 3-layer architecture key distribution model consists of the aggregation server layer, the local server layer and the client layer. This scheme adds a local server layer into the common two-layer key distribution model. It is used to decrease the computation load. Moreover, a dynamical authorization key matrix is defined in this paper to improve the security and flexibility of the key distribution model. Theoretical analysis shows that this scheme has the high-security and good performance, and it is interesting for applications in IISN.","PeriodicalId":253478,"journal":{"name":"2010 IEEE 12th International Conference on Communication Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129403506","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
Time delay estimation for passive SFN location using Chinese DTTB standard signals 基于中国DTTB标准信号的无源SFN定位时延估计
2010 IEEE 12th International Conference on Communication Technology Pub Date : 2010-11-01 DOI: 10.1109/ICCT.2010.5689247
Jun Yan, Linru Wang, Lenan Wu
{"title":"Time delay estimation for passive SFN location using Chinese DTTB standard signals","authors":"Jun Yan, Linru Wang, Lenan Wu","doi":"10.1109/ICCT.2010.5689247","DOIUrl":"https://doi.org/10.1109/ICCT.2010.5689247","url":null,"abstract":"One of the main problems facing accurate location is the parameter extraction. In this paper, we propose a new time delay estimation algorithm with generalized cross-correlation (GCC) method. The time delay is obtained by computing the cross-correlation between the transport streams of the same transmitted frame structure and the received signals. Simulations were conducted to evaluate its performance for different scenarios. Experiments demonstrated that the proposed time delay estimation algorithm was significantly effective under different channel models.","PeriodicalId":253478,"journal":{"name":"2010 IEEE 12th International Conference on Communication Technology","volume":"144 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124612857","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
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