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Improving Reactive ad hoc Routing Performance by Geographic Route Length

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Journal of Beijing Institute of Technology 2005年第4期14卷 359-364页

作者：曹元大于严兵卢迪 School of Information Science and Technology Beijing Institute of Technology Beijing100081 China

In order to help reactive ad hoc routing protocols select better-performance routes, a novel metric named geographic route length （GRL） is proposed. The relationship between GRL metric and routing performance is analyzed in detail. Combined with hop metric, GRL is applied into the original ad hoe on-demand distance vector （AODV） to demonstrate its effectiveness. Simulation experiments have shown that GRL can effectively reduce packet delay and route discovery frequency, thus can improve reactive ad hoc routing performance.

关键词： ad hoc routing metric least-hop geographic route length

Joint Power Control with Inter-Link Interference Prediction for Wireless ad hoc CDMA Networks

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Journal of Beijing Institute of Technology 2006年第1期15卷 97-101页

作者：张树戎蒙恬李哲峰 Department of Electronic and Engineering Shanghai Jiaotong University Shanghai200030 China

A joint power control algorithm for ad hoc networks based on code division multiple access （CDMA） was studied. Firstly, the new algorithm was deduced in theory. Then, the system model was developed. In the proposed algorithm, all transmitting nodes assigned in the same time slot adjust their transmitter power based on current information, which takes into account the adjustments of transmitter power of other transmitting nodes in next step and the prediction of inter-link interference power level at the receive node. Simulation results indicate that the proposed algorithm outperforms the conventional algorithms in terms of smaller standard deviation of receiver signal-to-interference-ratio, lower system interference and higher energy efficiency.

关键词： ad hoc code division multiple access(CDMA) power control Kalman filter

M-DCF:A MAC Protocol Supporting QoS in ad hoc Network

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M-DCF:A MAC Protocol Supporting QoS in Ad Hoc Network

Intelligent Security Auditing Based on Access Control of Devices in ad hoc Network

2000 International Conference on Communication Technology(WCC2000·ICCT2000)

作者： JIN xiaohui LI jiandong GUO feng School of Communication Engineering Xidian University

ISBN: (纸本)0780363949

＜正＞M-DCF,Modified Distribution Coordination Function,is proposed based on the characteristic of IP frame network,which is applied to WLAN’s ad hoc. The computer simulation shows that M-DCF can decrease the total frame dropping probability,voice frame dropping probability,voice frame contention delay,as well as data frame contention delay.

关键词： M-DCF MAC ad hoc QoS

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cnki会议

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Journal of Donghua University(English Edition) 2006年第6期23卷 50-52页

作者：徐光伟史有群朱明吴国文曹奇英 Department of Computer Science and Technology Donghua University

Security in ad hoc network is an important issue under the opening circumstance of application service. Some protocols and models of security auditing have been proposed to ensure rationality of contracting strategy and operating regulation and used to identify abnormal operation. Model of security auditing based on access control of devices will be advanced to register sign of devices and property of event of access control and to audit those actions. In the end, the model is analyzed and simulated.

关键词： ad hoc security auditing access control of devices sign of devices property of event.

A special solution to transmission capacity of ad hoc networks

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High Technology Letters 2011年第1期17卷 64-68页

作者：陈昌海 Yin Changchuan Li Nana Yue Guangxin Key Laboratory of Universal Wireless Communications Ministry of Education Beijing University of Posts and Telecommunications Beijing 100876 P. R. China School of Computer and Communication Engineering Zhengzhou University of Light Industry Zhengzhou 450002P. R. China

This paper presents an approximate expression to transmission capacity of ad hoc networks by using stochastic geometry. For there is no general close-form expression to the transmission capacity of ad hoc networks, by using Taylor series, we obtain the exact series expression to transmission capacity first, then we take partial summation to yield an n-th order approximate expression. Further- more, compared with the exact expression under a special case, the accuracy of the n-th order ap- proximation has been studied. The numerical results show that the accuracy of the approximation is mainly determined by the order n, and a high accuracy can be obtained when the node density or the outage constraint is close to zero .

关键词： ad hoc transmission capacity outage constraint approximation normalized interference

A ROUTING PROTOCOL BASED ON INTERFERENCE-AWARE AND CHANNEL-LOad IN MULTI-RadIO MULTI-CHANNEL ad hoc NETWORKS

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维普期刊数据库

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Journal of Electronics(China) 2010年第6期27卷 772-780页

作者： Lu Yang Sheng Feng Bao Hongjie Peng Zhen School of Computer and Information Hefei University of Technology Hefei 230000 China GOCOM Information ＆ Technology Co. LTD Hefei 230088 China

Improving capacity and reducing delay are the most challenging topics in wireless ad hoc networks. Nodes that equip multiple radios working on different channels simultaneously permit ef-fective utility of frequency spectrum and can also reduce interference. In this paper, after analyzing several current protocols in Multi-Radio Multi-Channel (MR-MC) ad hoc networks, a new multi-channel routing metric called Integrative Route Metric (IRM) is designed. It takes channel load, inter-flow, and intra-flow interference into consideration. In addition, an MR-MC routing protocol based on Interference-Aware and Channel-Load (MR-IACL) is also presented. The MR-IACL can assign channels and routings for nodes according to channel load and interference degree of links, and optimize channel distribution dynamically to satisfy the features of topology changing and traffic frequent fluctuation during network running. The simulation results show that the new protocol outperforms others in terms of network throughput, end-to-end delay, routing overhead, and network lifetime.

关键词： ad hoc Multi-Radio Multi-Channel (MR-MC) Interference-aware Routing protocol Channel assignment strategy

POWER-AWARE ROUTING BASED ON DSR FOR MOBILE ad hoc NETWORKS

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Journal of Electronics(China) 2007年第2期24卷 167-173页

作者： Huang Jingbo Hong Peilin Li Jinsheng Department of Electronic Engineering and Information Science University of Science and Technology of China Hefei 230027 China

Energy consumption is a crucial design concern in Mobile ad hoc NETworks (MANETs) since nodes are powered by batteries with limited energy, whereas Dynamic Source Routing (DSR) protocol does not take the energy limitation of MANET nodes into account. This paper proposes an energy-saving routing algorithm based on DSR: Power Aware Routing protocol based on DSR (PAR-DSR). The design objective of PAR-DSR is to select energy-efficient paths. The main features of PAR-DSR are: (1) Nodes use the Signal Attenuation Rate (SAR) to conduct power control operations; (2) Minimum path cost as metric to balance the traffic and energy consumption of wireless nodes. The simulation results show that PAR-DSR can greatly reduce the energy consumption of MANET nodes. The average node lifetime of PAR-DSR is 50%-77% longer than that of DSR.

关键词： ad hoc Energy consumption Cost function Signal Attenuation Rate (SAR) PowerAware Routing based on Dynamic Source Routing (PAR-DSR)

A NEW ad hoc ROUTING ALGORITHM BASED ON MINIMIZING THE CHANNEL HANDOFF

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Journal of Electronics(China) 2010年第6期27卷 749-755页

作者： Xie Jin Zhu Qi Li Zongshou Jiangsu Key Laboratory of Wireless Communications Nanjing University of Posts and Telecommunications Nanjing 210003 China） Key Lab on Wideband Wireless Communications and Sensor Network Technology of Ministry of Education Nanjing University of Posts and Telecommunications Nanjing 210003 China National Mobile Communications Research Laboratory Southeast University Nanjing 210003 China

How to improve the performance of the wireless ad hoc network by utilizing the spectrum resources efficiently has become a hot research topic in recent years. In this paper we propose a reactive routing algorithm that supports multiple channels to improve the performance of the ad hoc network based on the minimizing of the channel handoff. Our approach allocates the communication channel during the route discovery, and notifies the allocated channel information to the corresponding node in the route reply packets. Each node in the route tries its best to choose the same channel with the upstream node without interference. The simulation results show that our algorithm performs better than the K-hop distinct protocols in both average delays and network throughputs

关键词： ad hoc Multi-channel Channel handoff Network throughputs Routing

Securing Multicast Route Discovery for Mobile ad hoc Networks

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Wuhan University Journal of Natural Sciences 2007年第1期12卷 189-192页

作者： YANG Mingxi LI Layuan FANG Yiwei School of Computer Science and Technology WuhanUniversity of Technology Wuhan 430070 Hubei China Department of Electronics and Information Engineering Huazhong University of Science and Technology Wuhan 430074Hubei China

This paper presents SMRAN, a novel securing multicast route discovery scheme for mobile ad hoc networks. The scheme relies entirely on hash chains based one-time signature mechanism, HORSEI, with very efficient signing and verifying, and we do this by improving the HORSE protocol through the introduction of intermediate hash joints. The main purpose of SMRAN is to provide source authentication for multicast routing discovery messages in mobile ad hoc networks. SMRAN will construct multicast tree with authentication constrains in ad hoc networks. The performance measure of SMRAN is evaluated using simulator NS2. The results represent that SMRAN produces less end-to-end packet latency than public key based secure routing scheme, and it is a feasible approach to securing multicast routing for mobile ad hoc networks.

关键词： security multicast route mobile ad hoc