{"title":"Shock Wave Based Ray Tracing Method for Travel Time Estimation","authors":"Gen Li, L. Sun","doi":"10.1145/3193092.3193097","DOIUrl":"https://doi.org/10.1145/3193092.3193097","url":null,"abstract":"Travel time has been recognized as one of the most important performance measures of transportation system. This paper presents a ray tracing method for travel time estimation by following shock wave generation and propagation within a link. The proposed method is a physics driven approachand meanwhile vehicle trajectories are also estimated. As a mechanism-based method, it provides a physical interpretation on how vehicle traverses a stretch of roadway. The ray tracing method is compared to other conventional methods by using both field experiment and microscopic simulation, suggesting that the former exhibits more accurate and robust estimation results. It was found that as the proposed method can make the best of traffic data (speed, density, flow rate) to trace the real vehicle speed trajectories, it yields much better performance than other methods during transition flow and congestion, which is vital for a travel time estimation method.","PeriodicalId":402201,"journal":{"name":"Proceedings of the 6th International Conference on Communications and Broadband Networking","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130570074","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}
{"title":"A Threat-Driven Approach to Modeling a Campus Network Security","authors":"Marlon A. Naagas, T. Palaoag","doi":"10.1145/3193092.3193096","DOIUrl":"https://doi.org/10.1145/3193092.3193096","url":null,"abstract":"The Higher Education Institutions (HEI) readiness to cyber security threats has gotten less consideration than certain organizations and financial companies and the need to address these kinds of adversities are necessary in colleges and universities. These institutions face challenges which are unique to the way they operate, meaning they have to seek out appropriate solutions to keep their assets safe and secure. Threat-Driven Approach is a systematic approach that is driven by a clear understanding of the security need. Using this systematic approach, the strength of a protection is easily gauged through simple identification of the weakest link of the network. Various Threat Driven approach have been proposed, but most of the study focuses on the security of software development and business infrastructure. Based on the existing literature, there is no HEI that are practicing the systematic approach in securing their assets. The primary purpose of this paper is to enable HEI to apply this approach and will provide detailed guidance that will enable HEI to place threats at the forefront of planning, design, testing, deployment and operational activities. The THREAT DRIVEN APPROACH is a set of integrated methodology, practices and tools into one framework/model. The STRIDE and DREAD are also used in this study to identify and calculate the potential threats of the Network Security. As a result, our approach can make network design secured from anticipated security threats and, thus, reduce significant design-level vulnerabilities.","PeriodicalId":402201,"journal":{"name":"Proceedings of the 6th International Conference on Communications and Broadband Networking","volume":"109 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128951608","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}
{"title":"Sperm Swarm Optimization Algorithm for Optimizing Wireless Sensor Network Challenges","authors":"Hisham A. Shehadeh, I. Ahmedy, M. Idris","doi":"10.1145/3193092.3193100","DOIUrl":"https://doi.org/10.1145/3193092.3193100","url":null,"abstract":"This paper proposes a new meta-heuristic optimization approach, called \"Sperm Swarm Optimization (SSO)\". The underlying ideas and concepts behind the proposed method are inspired by sperm motility to fertilize the egg. In SSO, sperm swarm moves forward from a low-temperature zone called Cervix. During this direction, sperm searches for a high-temperature zone called Fallopian Tubes where the egg is waiting for the swarm for fertilization in this zone, which this area is considered as the optimal solution. The SSO is tested with optimizing several objective functions that represent Wireless Sensor Network (WSN) quality of services, which is used to minimize both the end-to-end delay and end-to-end latency and also to maximize both the packet throughput and energy efficiency.","PeriodicalId":402201,"journal":{"name":"Proceedings of the 6th International Conference on Communications and Broadband Networking","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123843606","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}
{"title":"A Simulation-Based Survey of Active Queue Management Algorithms","authors":"Dhulfiqar A. Alwahab, S. Laki","doi":"10.1145/3193092.3193106","DOIUrl":"https://doi.org/10.1145/3193092.3193106","url":null,"abstract":"Active Queue Management (AQM) has been used in routers for early detection of traffic congestion at the bottleneck link. In AQM, packets can be drop before the buffer becomes full, based on many different parameters or conditions. Many algorithms have been proposed to efficiently control the congestion in the network. The scope of this paper is to analyze the most recent and well-known AQM algorithms and evaluate their performance under heavy hybrid traffic load (TCP and UDP flows), using NS-3 network simulator. For the comparative analysis, various metrics are taken into account, including queue length, jitter, end to end delay, packet delivery ratio, and page load time. Results show that one of AQM algorithms can also be used for the purpose of QoS.","PeriodicalId":402201,"journal":{"name":"Proceedings of the 6th International Conference on Communications and Broadband Networking","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122441279","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}
{"title":"Impact of multipath fading on spectrum sensing in vehicular communication environment","authors":"C. Chembe, I. Ahmedy, R. M. Noor, D. Kunda","doi":"10.1145/3193092.3193099","DOIUrl":"https://doi.org/10.1145/3193092.3193099","url":null,"abstract":"Dynamic spectrum access (DSA) has received much attention in research community recently. DSA is the concept in which communication devices of unlicensed users are allowed to access underutilized spectrum in licensed frequency bands. DSA relies on cognitive radio (CR) technology to identify the free spectrum bands in licensed channels through spectrum sensing. In vehicular communications, spectrum sensing is affected by the speed of vehicles, multipath fading and shadowing. In this paper, we show the impact of fading on spectrum sensing in vehicular communications. Understanding how the fading environment affects spectrum sensing will help in developing sensing techniques that can prevent interference in licensed channels while allowing for utmost reuse of radio frequency through DSA.","PeriodicalId":402201,"journal":{"name":"Proceedings of the 6th International Conference on Communications and Broadband Networking","volume":"435 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126982212","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}
{"title":"A new method of Cloud-based Computation Model for Mobile Devices: Energy Consumption Optimization in Mobile-to-Mobile Computation Offloading","authors":"Hossein Jamali, A. Karimi, Mehdi Haghighizadeh","doi":"10.1145/3193092.3193103","DOIUrl":"https://doi.org/10.1145/3193092.3193103","url":null,"abstract":"Today, cell phones have great important role in everyday lives. They are the most effective and achievable communication and computation devices that necessitate no exact time or location. Fast development of movable calculation created an energetic power to develop a synchronous technology in the markets. Anyhow movable devices are encountering with various challenges concerning available resources such as: battery, storage, bandwidth, security, and mobility. On the other side, limitation of resources in these phones has a great effect on the quality of the services. The most important limitation is the energy consuming that leads us to use the device for calculation, in spite of the accessibility of other sources. The best suggested solutions are getting rid of computation on the cloud and use of portable cloud for computation. But If there was no accessible cloud or an accurace of disconnection with the cloud, cell phones are the best to use. According to a mathematical algorithm based on Lyapunov optimization and regarding the requirement time for suitable program, we will try to introduce a dynamic way which its limitation analysis reveals that offlooding the computation considering the limitation of time leads to a less spending of power and energy resembled the current algorithm.","PeriodicalId":402201,"journal":{"name":"Proceedings of the 6th International Conference on Communications and Broadband Networking","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128006442","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}
Shiqian Zhang, Zonghui Li, Ningchen Wang, Hai Wan, Xibin Zhao
{"title":"An Offline Equivalence Scheduling Technique for Time-Triggered Ethernet","authors":"Shiqian Zhang, Zonghui Li, Ningchen Wang, Hai Wan, Xibin Zhao","doi":"10.1145/3193092.3193105","DOIUrl":"https://doi.org/10.1145/3193092.3193105","url":null,"abstract":"Time-triggered networks, like TTEthernet, require tight communi-cation latency and minimal jitter requirements. One efficient way to meet these requirements is pre-compute the transmission points of the frames on the network and stores the complete schedule within the local memory. This method avoids contentions of frames. However, as the size of network grows, the size of offline table increases and the memory requirements increase while memory is a scare resource. Due to the memory limitation, a table based scheduling approach might not be applicable. In this paper, we present an offline equivalence scheduling technique for Time-triggered Ethernet. Offline equivalence is an online policy that is equivalent to a given offline table to combine the advantages of both online and offline scheduling. Here online scheduling is used, and only deviations from offline table are required to be stored. We consider each end in dataflow as a real-time embedded system (end-station) and solve the scheduling problem based on offline equivalence technique. In the evaluation, we consider an ILP-based solver CPLEX as our baseline to test our new scheduler under three different typical topologies. The results show that offline equivalence scheduling technique achieves high schedulability ratio, and only having to store on average a few bytes of the offline schedule in small-medium network.","PeriodicalId":402201,"journal":{"name":"Proceedings of the 6th International Conference on Communications and Broadband Networking","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121242312","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}
{"title":"Research on Multi-domain Mixed Analysis Technology of Communication Signals","authors":"H. Zeng, Lianping Guo, Jian Gao","doi":"10.1145/3193092.3193101","DOIUrl":"https://doi.org/10.1145/3193092.3193101","url":null,"abstract":"Aiming at the test requirements for broadband signals, transient signals and HDR (High Dynamic Range) signals under complex electromagnetic environment, the multi-domain mixed analysis technologies of transient signals, including time domain, frequency domain, modulation domain, communication protocol domain, statistical domain, etc. are studied in this paper. Firstly, the urgent demand on multi-domain real-time measurement of broadband and large dynamic transient signals are analyzed and the overall hardware architecture of multi-domain mixed analysis of signals, together with the working procedures of various modules are proposed; then, frequency conversion of broadband RF (radio frequency) signals, high-speed high-precision sampling, multi-domain time-dependent conjoint analysis and other key technologies are demonstrated in detail; finally, relevant technologies are verified through stimulating and testing, the results of which show that this scheme is feasible, providing necessary guarantee for follow-up development of engineering prototype.","PeriodicalId":402201,"journal":{"name":"Proceedings of the 6th International Conference on Communications and Broadband Networking","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127541195","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}
{"title":"A Novel CQI Prediction Scheme for LTE-A System","authors":"X. Zeng, Yuping Zhao, Wanyue Qu","doi":"10.1145/3193092.3193093","DOIUrl":"https://doi.org/10.1145/3193092.3193093","url":null,"abstract":"The 3rd Generation Partnership Project (3GPP) introduces carrier aggregation (CA) technology in LTE-Advanced (LTE-A) systems which admits aggregating different component carriers. As a result, it increases the feedback delay of the channel quality indicator (CQI) from user equipments (UE) to eNodeB. This unavoidable CQI delay lowers the system performance, especially in practical LTE-A system which has long delay. Here we introduced a novel CQI prediction scheme named historical-parallel-weighted extrapolation (HPWE) with low complexity to compensate the CQI change. Simulation results show that the proposed scheme improves system performance significantly in terms of throughput and fairness compared to the other existing solutions when users move in relatively high speed in LTE-A system.","PeriodicalId":402201,"journal":{"name":"Proceedings of the 6th International Conference on Communications and Broadband Networking","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122654083","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}
{"title":"A Novel Amplitude Spectrum Formation Algorithm for FRFT-TDCS","authors":"Zheng Bo, Qiu Zheng, Zhang Heng-yang, Cheng Cheng","doi":"10.1145/3193092.3193104","DOIUrl":"https://doi.org/10.1145/3193092.3193104","url":null,"abstract":"For the problems of the traditional Transform Domain Communication System (TDCS) dealing with Multi-component Linear Frequency Modulation (MLFM) interference signals, we propose a novel amplitude spectrum formation algorithm for FRFT-TDCS (Transform Domain Communication System based on Fractional Fourier Transform) in this paper. The algorithm can achieve the maximum available bandwidth through an optimal transform order selection scheme. We firstly analyze the spectrum distribution characteristics of LFM interference signals with different transform orders in the FRFT domain, and quantify their energy bandspread and center position. Then the spectrum magnitude vector would be generated through the preset threshold, and the optimal transform order which can maximize the number of available spectrum subcarrier is chosen. We then derive the relationship between the system BER and autocorrelation function of the basis function through the CSK demodulation model. It proves that the system BER can be reduced by increasing the number of available spectrum subcarrier. Simulation results show that when dealing with MLFM interference signals, the proposed algorithm can find the optimal transform order, decrease the peak and mean value of the basis function, improve the system LPI and LPD performance, and reduce the system BER effectively.","PeriodicalId":402201,"journal":{"name":"Proceedings of the 6th International Conference on Communications and Broadband Networking","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123967450","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}