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2011 Third International Conference on Communications and Mobile Computing最新文献

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A Power Control Game via New Pricing with Dynamic Coefficient in Cognitive Radio 基于动态系数定价的认知无线电功率控制博弈
2011 Third International Conference on Communications and Mobile Computing Pub Date : 2011-04-18 DOI: 10.1109/CMC.2011.95
Shuang-Ma Wu, Xu Wang, Jian Liu
{"title":"A Power Control Game via New Pricing with Dynamic Coefficient in Cognitive Radio","authors":"Shuang-Ma Wu, Xu Wang, Jian Liu","doi":"10.1109/CMC.2011.95","DOIUrl":"https://doi.org/10.1109/CMC.2011.95","url":null,"abstract":"Over recent years, power control plays a critical role in the cognitive radio (CR) system. Most of existing works considered power control game under the interference temperature constrains which is a side condition. In this paper, we propose a power control algorithm using game theory. We define a new pricing function which can effectively control the network power consumption. This pricing function has a dynamic coefficient with interference temperature constrains and it is different from user to user. We also prove the existence and uniqueness of Nash Equilibrium (NE) for the above game. Simulation results show that the game with the proposed pricing function can improve the performance of the cognitive user. Furthermore, the new game model guarantees the fairness of cognitive users at a certain extent.","PeriodicalId":263741,"journal":{"name":"2011 Third International Conference on Communications and Mobile Computing","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117276328","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
Low Power CMOS High Speed Dual-Modulus 15/16 Prescaler for Wireless Communications 用于无线通信的低功耗CMOS高速双模15/16预分频器
2011 Third International Conference on Communications and Mobile Computing Pub Date : 2011-04-18 DOI: 10.1109/CMC.2011.58
Huimin Liu, Xiao-xing Zhang, Yu-jie Dai, Yingjie Lv
{"title":"Low Power CMOS High Speed Dual-Modulus 15/16 Prescaler for Wireless Communications","authors":"Huimin Liu, Xiao-xing Zhang, Yu-jie Dai, Yingjie Lv","doi":"10.1109/CMC.2011.58","DOIUrl":"https://doi.org/10.1109/CMC.2011.58","url":null,"abstract":"This paper introduces a high speed, low power CMOS 15/16 dual-modulus prescaler (DMP) based on true single-phase-clock (TSPC) and transmission gates (TGs) cell. A glitch elimination TSPC is used in the synchronous counter. TGs are used in the critical path. The DMP circuit implemented in 0.18µm CMOS process. The simulation results are provided. It shows wide operating frequency from 0.5GHz to 3.125GHz. It comsumes 4.23mW with 1.8V power supply voltage at 3.125GHz.","PeriodicalId":263741,"journal":{"name":"2011 Third International Conference on Communications and Mobile Computing","volume":"528 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123083935","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
A New Approach for Optimal Power Control in the Uplink of Cellular CDMA Systems 蜂窝CDMA系统上行链路最优功率控制的新方法
2011 Third International Conference on Communications and Mobile Computing Pub Date : 2011-04-18 DOI: 10.1109/CMC.2011.127
Xiaoyu Feng, Hsiao-Chun Wu, Hong Jiang
{"title":"A New Approach for Optimal Power Control in the Uplink of Cellular CDMA Systems","authors":"Xiaoyu Feng, Hsiao-Chun Wu, Hong Jiang","doi":"10.1109/CMC.2011.127","DOIUrl":"https://doi.org/10.1109/CMC.2011.127","url":null,"abstract":"Power control is very crucial for wireless communication systems. In cellular code-division multiple-access (CDMA) systems, the power control subject to the received signal-to-interference-plus-noise ratio (SINR) requirement would mitigate the near-far effect and maintain a satisfactory overall system performance. In this paper, we introduce a new efficient optimization scheme for the power control in the CDMA uplinks. Our new analysis is derived for the realistic scenario consisting of multiple base stations and mobile users over the additive white Gaussian noise channel. Both intracell and intercell interference powers are considered here as the essential factors emerging in any cellular CDMA system. Besides, we also design a novel computationally-efficient power-control optimization scheme for the CDMA systems. This new scheme is simply based on the signal-to-noise ratio at the receiver and the locations of the base stations and mobile users. Finally, an example is presented to show the superiority of our proposed method for the uplink power-control optimization to another existing scheme.","PeriodicalId":263741,"journal":{"name":"2011 Third International Conference on Communications and Mobile Computing","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115249969","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
On Mutual Support of Modern and Traditional Access Control Models with UCON and BLP as Case Study 现代与传统访问控制模型的相互支持——以UCON和BLP为例
2011 Third International Conference on Communications and Mobile Computing Pub Date : 2011-04-18 DOI: 10.1109/CMC.2011.104
Hui Feng, Wenchang Shi, Zhaohui Liang, Bin Liang
{"title":"On Mutual Support of Modern and Traditional Access Control Models with UCON and BLP as Case Study","authors":"Hui Feng, Wenchang Shi, Zhaohui Liang, Bin Liang","doi":"10.1109/CMC.2011.104","DOIUrl":"https://doi.org/10.1109/CMC.2011.104","url":null,"abstract":"Access control is essential to computer security, especially in an open, distributed, networked communication environment. Modern access control model such as UCON aims at accommodating general requirements. Traditional one such as BLP focuses on specific properties, e.g. confidentiality. Both of these two realms have their limitations. Taking UCON and BLP as case study, this paper explores mutual support of modern and traditional access control models. It investigates BLP's adaptable characteristic in the UCON perspective. First, it constructs properties in the UCON language to manifest the BLP adaptability, which shows that the BLP adaptability can be ensured to function correctly by the UCON framework. Further, it proposes a formal specification for the BLP adaptability under the UCON framework with the Temporal Logic of Actions, which demonstrates that the BLP adaptability is in good consistency with the UCON model. The significance of the paper is twofold. On the one hand, it exhibits that adaptable quality of the traditional BLP model may be ensured theoretically by the philosophy of modern access control. On the other hand, it enriches the real sense of modern access control models by strengthening the power of traditional access control models.","PeriodicalId":263741,"journal":{"name":"2011 Third International Conference on Communications and Mobile Computing","volume":"175 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115720026","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
Conflict-Free Transmission Schedule Based on Network Coding in Wireless Networks 基于网络编码的无线网络无冲突传输调度
2011 Third International Conference on Communications and Mobile Computing Pub Date : 2011-04-18 DOI: 10.1109/CMC.2011.20
Jing Wang, Xiangyang Liu, Xinmei Wang
{"title":"Conflict-Free Transmission Schedule Based on Network Coding in Wireless Networks","authors":"Jing Wang, Xiangyang Liu, Xinmei Wang","doi":"10.1109/CMC.2011.20","DOIUrl":"https://doi.org/10.1109/CMC.2011.20","url":null,"abstract":"In wireless networks, the cross-layer design of joint medium access control and network coding can avoid destructive interferences among concurrent transmissions. Wireless network codes in conjunction with conflict-free network realizations are designed by Sagduyu. Then, this paper proposed a new conflict-free transmission schedule based on network coding to achieve better network performance. We construct sub tree graphs by sub tree decomposition, and based on the achieved sub tree graphs, time slots are assigned from the first sub tree. Nodes of the latter sub trees can be chosen to combine with the front time slots according to whether there exist conflicts or not. Finally, network codes allocation method for network with two sources is presented, which adopts the theory of graph coloring.","PeriodicalId":263741,"journal":{"name":"2011 Third International Conference on Communications and Mobile Computing","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122445477","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
Cooperative and Non-cooperative WSPs in Dynamic Spectrum Leasing 动态频谱租赁中的合作与非合作wsp
2011 Third International Conference on Communications and Mobile Computing Pub Date : 2011-04-18 DOI: 10.1109/CMC.2011.59
Ya-zhen Ren, Qin-Yu Zhang, Pei-pei Chen
{"title":"Cooperative and Non-cooperative WSPs in Dynamic Spectrum Leasing","authors":"Ya-zhen Ren, Qin-Yu Zhang, Pei-pei Chen","doi":"10.1109/CMC.2011.59","DOIUrl":"https://doi.org/10.1109/CMC.2011.59","url":null,"abstract":"In this paper, we study the interactions between two Secondary Wireless Service Providers (WSPs) in different situations: competitive and cooperative. WSPs acquire spectrum by leasing from spectrum broker and then sell spectrum to secondary users by providing services. Users follow Wardrop's principle and choose WSPs with lowest perceived price which is associated with price and quality of service (QoS). WSPs and users play a three-stage game to maximize their own profits. Assume the information about the WSPs and users are complete, we analyze the extensive form game by backward induction. After comparing with cooperative WSPs, We find that competitive WSPs have little less efficiency but more effectiveness and reality.","PeriodicalId":263741,"journal":{"name":"2011 Third International Conference on Communications and Mobile Computing","volume":"78 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128672439","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 Multi-level Framed Slotted ALOHA Algorithm for RFID 一种用于RFID的多级分框开槽ALOHA算法
2011 Third International Conference on Communications and Mobile Computing Pub Date : 2011-04-18 DOI: 10.1109/CMC.2011.64
Zhou Xin, Liu Ye, Ding Jie
{"title":"A Multi-level Framed Slotted ALOHA Algorithm for RFID","authors":"Zhou Xin, Liu Ye, Ding Jie","doi":"10.1109/CMC.2011.64","DOIUrl":"https://doi.org/10.1109/CMC.2011.64","url":null,"abstract":"A new algorithm based on multi-level framed slotted ALOHA was proposed to improve system efficiency and response speed of RFID. The algorithm increases the efficiency of the original algorithm by about 20% through multi-level frame and small cycles. The new algorithm, avoiding the hot and complex topic of accurately forecasting the number of tags, is dedicated to identify all tags within a main frame without forecasting the next frame size, thus the computation is significantly reduced. Simulation results show that in ideal circumstances, the new algorithm not only breaks through the \"efficiency bottleneck\" of current method, but also increases the tag's identification speed.","PeriodicalId":263741,"journal":{"name":"2011 Third International Conference on Communications and Mobile Computing","volume":"33 11","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120903450","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
Simultaneous Transmission Slot Allocation Mechanism in Wireless Sensor Networks 无线传感器网络中同步传输时隙分配机制
2011 Third International Conference on Communications and Mobile Computing Pub Date : 2011-04-18 DOI: 10.1109/CMC.2011.8
Jugen Nie, Deshi Li, Yanyan Han, Shikun Xie
{"title":"Simultaneous Transmission Slot Allocation Mechanism in Wireless Sensor Networks","authors":"Jugen Nie, Deshi Li, Yanyan Han, Shikun Xie","doi":"10.1109/CMC.2011.8","DOIUrl":"https://doi.org/10.1109/CMC.2011.8","url":null,"abstract":"In recent years, Wireless Sensor Networks (WSNs) have drawn broad attention in scientific research, social services, military applications, which can be widely applied in tracking, environment monitoring, but offer interesting challenges to device and protocol designers due to WSNs, which is characterized by high propagation delay and low data rate. For instant and efficient data transmission, medium access protocol becomes a hotspot for reducing delay. In this paper we propose a new slot allocation scheme-simultaneous transmission based on time division multiple access(TDMA). Using the elements that simultaneous transmission by three hops nodes separated doesn't induce conflict, it adopts the means that nodes three hops away occupy the same slot to reduce the time of data transmission and enhance network throughput. The simulation verifies the effectiveness of this mechanism and the digital simulation results prove that it can effectively improve network delay.","PeriodicalId":263741,"journal":{"name":"2011 Third International Conference on Communications and Mobile Computing","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116458272","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
Formal Analysis of Trusted Computing: One Case Study 可信计算的形式化分析:一个案例研究
2011 Third International Conference on Communications and Mobile Computing Pub Date : 2011-04-18 DOI: 10.1109/CMC.2011.108
Hongwei Zhou, Jinhui Yuan
{"title":"Formal Analysis of Trusted Computing: One Case Study","authors":"Hongwei Zhou, Jinhui Yuan","doi":"10.1109/CMC.2011.108","DOIUrl":"https://doi.org/10.1109/CMC.2011.108","url":null,"abstract":"LS2 is the logic to reason about the property of trusted computing. However, it lacks the capability of modeling the isolation provided by virtualization which is often involved in previous trusted computing system. With the support of changed LS2, we model three types of isolation. Moreover, we formally analyze the integrity measurement property of Trust Visor proposed recently which provides the isolated execution environment for security-sensitive code.","PeriodicalId":263741,"journal":{"name":"2011 Third International Conference on Communications and Mobile Computing","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125959634","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
Secrecy Rates for Relay Selection in OFDMA Networks OFDMA网络中继选择的保密率
2011 Third International Conference on Communications and Mobile Computing Pub Date : 2011-04-18 DOI: 10.1109/CMC.2011.91
Chunxiao Cai, Yueming Cai, Weiwei Yang
{"title":"Secrecy Rates for Relay Selection in OFDMA Networks","authors":"Chunxiao Cai, Yueming Cai, Weiwei Yang","doi":"10.1109/CMC.2011.91","DOIUrl":"https://doi.org/10.1109/CMC.2011.91","url":null,"abstract":"In this paper, we study the secrecy communication using physical layer security in OFDMA networks. The expressions of secrecy rates and outage probability are derived in OFDMA networks using Decode-and-Forward (DF) strategy. Monte Carlo simulations are carried out to validate our analysis.","PeriodicalId":263741,"journal":{"name":"2011 Third International Conference on Communications and Mobile Computing","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125975127","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
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