2021 International Conference on Computer, Information and Telecommunication Systems (CITS)最新文献

Blockchain and Multiple Linear Regression-based Energy Trading Scheme for Electric Vehicles 基于区块链和多元线性回归的电动汽车能源交易方案

2021 International Conference on Computer, Information and Telecommunication Systems (CITS) Pub Date : 2021-11-11 DOI: 10.1109/cits52676.2021.9618021

Riya Kakkar, Rajesh Gupta, M. Obaidat, S. Tanwar

引用次数: 2

Performance Analysis of the Spectrum Access Strategies in Cognitive Radio Networks 认知无线网络频谱接入策略的性能分析

2021 International Conference on Computer, Information and Telecommunication Systems (CITS) Pub Date : 2021-11-11 DOI: 10.1109/cits52676.2021.9618460

B. Kumar, S. K. Dhurandher, M. Obaidat

{"title":"Performance Analysis of the Spectrum Access Strategies in Cognitive Radio Networks","authors":"B. Kumar, S. K. Dhurandher, M. Obaidat","doi":"10.1109/cits52676.2021.9618460","DOIUrl":"https://doi.org/10.1109/cits52676.2021.9618460","url":null,"abstract":"The world has seen revolutionary changes in the area of communication. Nowadays, communication is the very important part of everyone’s life. It has changes the way we live, talk, move, think, commerce, study and so on. Wireless radio spectrum is the backbone of this entire scintillating structure. Static allocation of radio spectrum has resulted not only in the scarcity of the availability of spectrum bands, but also the under utilization of the available bandwidth as well. Cognitive radio is envisioned as the panacea for this scarcity. The protection of primary users is vital when secondary users use the licensed spectrum bands. Overlay and underlay are the two main approaches being used in the area of cognitive radio networks. Modern research has proven that none of them alone is good enough for achieving the purpose of desirable spectral efficiency. A hybrid approach is required for taking the full benefit of the opportunities generated, due to the behavioural pattern of the primary users. In this article, we use a Markov based model for maximum utilization of available spectrum bands. This article provides a performance analysis of three different access strategies namely Overlay, Underlay, and Hybrid access methods on several network parameters including the primary user (PU) arrival rate, achieved throughput for secondary users, sensing time (sensing interval), and the consumption of energy by the secondary users during the process of data transmission. OMNeT++ simulator is used for the analysis purpose. Our analysis reveals that adopting a hybrid access strategy is more preferable for better spectrum utilization.","PeriodicalId":211570,"journal":{"name":"2021 International Conference on Computer, Information and Telecommunication Systems (CITS)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127077829","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

Handover with Network Slicing in 5G Networks 5G网络中基于网络切片的切换

2021 International Conference on Computer, Information and Telecommunication Systems (CITS) Pub Date : 2021-11-11 DOI: 10.1109/cits52676.2021.9618576

Kübra Sevim, T. Tuğcu

{"title":"Handover with Network Slicing in 5G Networks","authors":"Kübra Sevim, T. Tuğcu","doi":"10.1109/cits52676.2021.9618576","DOIUrl":"https://doi.org/10.1109/cits52676.2021.9618576","url":null,"abstract":"The wide variety of new opportunities offered by 5G, together with the very large number of mobile devices, imposes significant challenges in network operation. Network slicing provides efficient operation of the network under these conditions by separating the slices. However, scalable and flexible approaches are required to allow for the dynamic load of the network. Network slicing is the concept of having multiple isolated virtual networks on top of the same physical infrastructure. As the result of fluctuations (due to mobility or varying offered traffic), a UE may be subject to handover between cells. The selection of the UE and the corresponding service base station (BS) may hamper utilization if the UE undergoing handover cannot be offered the same slice capacities by the destination BS. In this paper, we propose handover to increase the utilization of the radio resources by selecting the UEs that undergo handover according to the required services for each slice and the availability of those slices at the destination BS. We develop an optimization problem to optimize the radio resources and propose three heuristics to reach similar results in considerably low computing times. We simulate the results of the algorithms and show that our heuristics can present solutions close to the optimal within a short time frame.","PeriodicalId":211570,"journal":{"name":"2021 International Conference on Computer, Information and Telecommunication Systems (CITS)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116725920","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

Efficient Frequency Planning for LoRaWAN networks with urgent traffic 具有紧急流量的LoRaWAN网络的有效频率规划

2021 International Conference on Computer, Information and Telecommunication Systems (CITS) Pub Date : 2021-11-11 DOI: 10.1109/cits52676.2021.9618355

Athanasios Tsakmakis, A. Valkanis, G. Beletsioti, Konstantinos F. Kantelis, Petros Nicopolitidis, Georgios I. Papadimitriou

引用次数: 0

2021 CITS Obituary

2021 International Conference on Computer, Information and Telecommunication Systems (CITS) Pub Date : 2021-11-11 DOI: 10.1109/cits52676.2021.9618349

引用次数: 0

Automated essay scoring: A review of the field 自动作文评分:对该领域的回顾

2021 International Conference on Computer, Information and Telecommunication Systems (CITS) Pub Date : 2021-11-11 DOI: 10.1109/cits52676.2021.9618476

P. Lagakis, S. Demetriadis

引用次数: 11

Efficient and Secure Design of ID-3PAKA Protocol Using ECC 基于ECC的ID-3PAKA协议高效安全设计

2021 International Conference on Computer, Information and Telecommunication Systems (CITS) Pub Date : 2021-11-11 DOI: 10.1109/cits52676.2021.9618445

D. Gupta, Krittibas Parai, M. Obaidat, S. H. Islam

引用次数: 2

A Low-Complexity Soft-Output Signal Data Detection Algorithm for UL Massive MIMO Systems UL大规模MIMO系统的低复杂度软输出信号数据检测算法

2021 International Conference on Computer, Information and Telecommunication Systems (CITS) Pub Date : 2021-11-11 DOI: 10.1109/cits52676.2021.9618605

Salah Berra, M. Albreem, Maha Malek, R. Dinis, Xingwang Li, Khaled Maaiuf Rabie

{"title":"A Low-Complexity Soft-Output Signal Data Detection Algorithm for UL Massive MIMO Systems","authors":"Salah Berra, M. Albreem, Maha Malek, R. Dinis, Xingwang Li, Khaled Maaiuf Rabie","doi":"10.1109/cits52676.2021.9618605","DOIUrl":"https://doi.org/10.1109/cits52676.2021.9618605","url":null,"abstract":"In massive multiple-input multiple-output (MIMO) systems, although the performance of maximum likelihood (ML) is the optimum, it introduces extremely high computational complexity, while minimum mean square error (MMSE) receivers can achieve quasi-optimal performance. Unfortunately, it requires a matrix inverse which increases the computational complexity in high loaded environments. Several methods have been proposed to avoid the matrix inversion such as the accelerated over relaxation (AOR). In the AOR algorithm, the initial solution and the optimum parameters have a great impact on the performance, computational complexity, and the convergence rate. In this paper, a detector based on AOR and a stair matrix is proposed to iteratively avoid the inverse of equalization matrix and expediting the convergence rate. In order to obtain high performance and low complexity, suitable schemes for the selection relaxation and acceleration parameters are also proposed. Numerical results show that the computational complexity of the proposed AOR approach is dramatically reduced from $mathcal{O}left( {{K^3}} right)$ to $mathcal{O}left( {{K^2}} right)$ where K is the number of users. It is also shown that the proposed detection algorithm outperforms the Neumann series method and achieves a quasi-optimal performance with a relatively small number of iterations.","PeriodicalId":211570,"journal":{"name":"2021 International Conference on Computer, Information and Telecommunication Systems (CITS)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120891339","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 Software-defined Delay-aware Traffic Load Control for WiFi-based Smart City Services 基于wifi的智慧城市服务的软件定义延迟感知交通负载控制

2021 International Conference on Computer, Information and Telecommunication Systems (CITS) Pub Date : 2021-11-11 DOI: 10.1109/cits52676.2021.9617928

Basima Kurungadan, A. Abdrabou

引用次数: 2

Comparisons Between an Oblique Ionosphere Sounding Technique Based on KiwiSDR Receivers and a Proprietary Analytical Propagation Model 基于KiwiSDR接收机的倾斜电离层探测技术与专有分析传播模型的比较

2021 International Conference on Computer, Information and Telecommunication Systems (CITS) Pub Date : 2021-11-11 DOI: 10.1109/cits52676.2021.9618011

Mircea Stanic

引用次数: 0