Pub Date : 2011-04-26DOI: 10.1109/NRSC.2011.5873612
G. Attia, I. El Dokany, A. Mohamed
Optical communications either wire or wireless are a promising candidate to support multimedia such as: “local area network (LAN), wide area network (WAN), metropolitan area network (MAN), wireless optical microwave link for TV and broadcast as well as the inter satellite link communications”. Where, they have substantial advantages such as ultra high bit rate, extremely high speed, secure and immune communications. However, its high-speed data transfer, transmission distance and bandwidth often limited by pulse dispersion which causes pulse brooding and hence signal distortion or inter symbol interference (I.S.I). The current paper, proposes an adaptive equalizer by integrating the fractional spaced equalizer (FSE) with decision feedback equalizer (DFE) for optical channel to remedy the problem of pulse dispersion effect in optical link, in addition, for further improvement in the performance of the equalizer we propose adopting the activity detection guidance (ADG) with tap decoupling (TD) in the fractional spaced decision feedback equalizer (FSDFE) to get fruitful outcomes in the performance of the system without shortcomings. Where, we could improve the stability, the steady-state error performance and the convergence rate. A typical optical channel will be analyzed; channel equalization will be performed using the addressed structures of adaptive equalizer. Numerical results have been carried out using a careful choice for the parameters which affect the equalizer performance such as: noise variance has been set at 0.1 and the adaptation step size has been set at 0.005 and the adaptation of FSDFE has been run for 30000 sample input. The simulation results revealed that: the FSDFE with ADG and TD offers a superior performance than its counterpart without ADG and TD. Where, it offers improvement in the effectiveness of amplitude distortion. Moreover, as the impulse response of a typical optical link would have regions that are essentially zero, the employment of the ADG scheme would further enhances the steady-state error performance and convergence rate.
{"title":"Combating performance degradation in optical channels using successful noise reduction adaptive equalizer","authors":"G. Attia, I. El Dokany, A. Mohamed","doi":"10.1109/NRSC.2011.5873612","DOIUrl":"https://doi.org/10.1109/NRSC.2011.5873612","url":null,"abstract":"Optical communications either wire or wireless are a promising candidate to support multimedia such as: “local area network (LAN), wide area network (WAN), metropolitan area network (MAN), wireless optical microwave link for TV and broadcast as well as the inter satellite link communications”. Where, they have substantial advantages such as ultra high bit rate, extremely high speed, secure and immune communications. However, its high-speed data transfer, transmission distance and bandwidth often limited by pulse dispersion which causes pulse brooding and hence signal distortion or inter symbol interference (I.S.I). The current paper, proposes an adaptive equalizer by integrating the fractional spaced equalizer (FSE) with decision feedback equalizer (DFE) for optical channel to remedy the problem of pulse dispersion effect in optical link, in addition, for further improvement in the performance of the equalizer we propose adopting the activity detection guidance (ADG) with tap decoupling (TD) in the fractional spaced decision feedback equalizer (FSDFE) to get fruitful outcomes in the performance of the system without shortcomings. Where, we could improve the stability, the steady-state error performance and the convergence rate. A typical optical channel will be analyzed; channel equalization will be performed using the addressed structures of adaptive equalizer. Numerical results have been carried out using a careful choice for the parameters which affect the equalizer performance such as: noise variance has been set at 0.1 and the adaptation step size has been set at 0.005 and the adaptation of FSDFE has been run for 30000 sample input. The simulation results revealed that: the FSDFE with ADG and TD offers a superior performance than its counterpart without ADG and TD. Where, it offers improvement in the effectiveness of amplitude distortion. Moreover, as the impulse response of a typical optical link would have regions that are essentially zero, the employment of the ADG scheme would further enhances the steady-state error performance and convergence rate.","PeriodicalId":438638,"journal":{"name":"2011 28th National Radio Science Conference (NRSC)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125418507","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}
Pub Date : 2011-04-26DOI: 10.1109/NRSC.2011.5873598
S. El-Khamy, A. Zaki, Ehab Farouk Badran
A Smart Ultra-wideband (UWB) system using analog space time coding (STC) and adaptive GA (Genetic Algorithm) Rake receiver was previously introduced [1]. The smart UWB system showed a great enhancement in performance over the SISO (single input single output) UWB one in a peer to peer scenario. In this paper the smart UWB system is used with the TR (Time Reversal) to enhance the performance of the smart UWB system in addition to reducing the receiver complexity. This paper also shows that using TR technique with the smart UWB system helps combating interferences from other UWB systems. Due to the dense resolved multipath components in UWB system, TR technique helps concentrating most of the energy of the desired signal at certain instance or path delay while that of interferers is spread over the multipath components. Thus, the desired signal energy at the receiver is dominant over the interfering ones. Finally, the smart UWB system uses the GA Rake to adaptively select the path delay at which the desired signal energy is maximized.
{"title":"Interference rejection in UWB systems using Smart STC based on GA Rake receivers and TR technique","authors":"S. El-Khamy, A. Zaki, Ehab Farouk Badran","doi":"10.1109/NRSC.2011.5873598","DOIUrl":"https://doi.org/10.1109/NRSC.2011.5873598","url":null,"abstract":"A Smart Ultra-wideband (UWB) system using analog space time coding (STC) and adaptive GA (Genetic Algorithm) Rake receiver was previously introduced [1]. The smart UWB system showed a great enhancement in performance over the SISO (single input single output) UWB one in a peer to peer scenario. In this paper the smart UWB system is used with the TR (Time Reversal) to enhance the performance of the smart UWB system in addition to reducing the receiver complexity. This paper also shows that using TR technique with the smart UWB system helps combating interferences from other UWB systems. Due to the dense resolved multipath components in UWB system, TR technique helps concentrating most of the energy of the desired signal at certain instance or path delay while that of interferers is spread over the multipath components. Thus, the desired signal energy at the receiver is dominant over the interfering ones. Finally, the smart UWB system uses the GA Rake to adaptively select the path delay at which the desired signal energy is maximized.","PeriodicalId":438638,"journal":{"name":"2011 28th National Radio Science Conference (NRSC)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117137580","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}
Pub Date : 2011-04-26DOI: 10.1109/NRSC.2011.5873594
M. G. El-Mashed, M. Dessouky, M. El-kordy, O. Zahran, F. E. El-Samie
A Synthetic aperture radar (SAR) simulator for image quality evaluation is presented. This simulator can be used for the estimation of SAR image quality performance from the simulated raw data using different wideband signals. These signals are random noise, chirp and chirp-Gaussian (proposed) waveforms. In this paper, a mathematical model for these waveforms is introduced. The autocorrelation function, power spectral density, and delay-Doppler ambiguity function (AF) for the proposed waveform are plotted to show that proposed waveform reduced sidelobes to −55 dB. Computer plots of theses waveforms and the resulted SAR image are generated to illustrate the features of the proposed waveform for resolution, clutter suppression, and detection of larger and more complex targets. It is shown that by using wideband Chirp-Gaussian waveform, one can achieve high image resolution and reduced range estimation ambiguity.
{"title":"Chirp modulated by Gaussian pulse for synthetic aperture radar imaging","authors":"M. G. El-Mashed, M. Dessouky, M. El-kordy, O. Zahran, F. E. El-Samie","doi":"10.1109/NRSC.2011.5873594","DOIUrl":"https://doi.org/10.1109/NRSC.2011.5873594","url":null,"abstract":"A Synthetic aperture radar (SAR) simulator for image quality evaluation is presented. This simulator can be used for the estimation of SAR image quality performance from the simulated raw data using different wideband signals. These signals are random noise, chirp and chirp-Gaussian (proposed) waveforms. In this paper, a mathematical model for these waveforms is introduced. The autocorrelation function, power spectral density, and delay-Doppler ambiguity function (AF) for the proposed waveform are plotted to show that proposed waveform reduced sidelobes to −55 dB. Computer plots of theses waveforms and the resulted SAR image are generated to illustrate the features of the proposed waveform for resolution, clutter suppression, and detection of larger and more complex targets. It is shown that by using wideband Chirp-Gaussian waveform, one can achieve high image resolution and reduced range estimation ambiguity.","PeriodicalId":438638,"journal":{"name":"2011 28th National Radio Science Conference (NRSC)","volume":"694 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131120170","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}
Pub Date : 2011-04-26DOI: 10.1109/NRSC.2011.5873650
Khaled Sayed, N. Solouma, Y. Kadah
Protein function prediction is one of the most important problems in the field of proteomics since it leads to determining cell functions. Since proteome is divided into clusters, each cluster (group of proteins) should have common characteristics. One of these characteristics is to have the same functions. In this study we try to extract motifs for each sub-function category of yeast proteins. The technique is based on applying multiple sequence alignment (MSA) to all yeast protein function categories. The protein sequences are collected from different data sources as DIP, PIR, and SWISS PROT and CLC program is used to apply the sequence alignment. Threshold is determined for every protein function category to indicate the most common frequent amino acids to be a feature for this category. After implementing the algorithm, sequence is verified with some proteins have the correct functions and the gained results are good. The technique is considered as verification method for protein function prediction
{"title":"Yeast protein function motif extraction based on sequence alignment","authors":"Khaled Sayed, N. Solouma, Y. Kadah","doi":"10.1109/NRSC.2011.5873650","DOIUrl":"https://doi.org/10.1109/NRSC.2011.5873650","url":null,"abstract":"Protein function prediction is one of the most important problems in the field of proteomics since it leads to determining cell functions. Since proteome is divided into clusters, each cluster (group of proteins) should have common characteristics. One of these characteristics is to have the same functions. In this study we try to extract motifs for each sub-function category of yeast proteins. The technique is based on applying multiple sequence alignment (MSA) to all yeast protein function categories. The protein sequences are collected from different data sources as DIP, PIR, and SWISS PROT and CLC program is used to apply the sequence alignment. Threshold is determined for every protein function category to indicate the most common frequent amino acids to be a feature for this category. After implementing the algorithm, sequence is verified with some proteins have the correct functions and the gained results are good. The technique is considered as verification method for protein function prediction","PeriodicalId":438638,"journal":{"name":"2011 28th National Radio Science Conference (NRSC)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117239559","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}
Pub Date : 2011-04-26DOI: 10.1109/NRSC.2011.5873584
A. Montaser, K. Mahmoud, H. Elmikati
Recently hybrid optimizations algorithm has attracted a lot of attention as a high-performance optimizer. This paper presents a comparison between different hybrid optimization algorithms. The proposed algorithms are used to design a slotted bow-tie antenna for 2.45 GHz Radio Frequency Identification (RFID) readers. The antenna is optimized using different algorithms integrated with the CST Microwave studio. Four algorithms are compared: Genetic Algorithm (GA), Particle Swarm Optimization (PSO), hybrid approach involving Genetic Algorithm (GA) and Nelder-Mead (NM) algorithm (GA-NM), and a hybrid approach involving PSO and Nelder-Mead optimization algorithm (PSO-NM). It is anticipated that the introduced hybrid approaches are more efficient and can be applied to other types of antennas.
{"title":"Slotted bow-tie antenna design for RFID readers using hybrid optimization techniques","authors":"A. Montaser, K. Mahmoud, H. Elmikati","doi":"10.1109/NRSC.2011.5873584","DOIUrl":"https://doi.org/10.1109/NRSC.2011.5873584","url":null,"abstract":"Recently hybrid optimizations algorithm has attracted a lot of attention as a high-performance optimizer. This paper presents a comparison between different hybrid optimization algorithms. The proposed algorithms are used to design a slotted bow-tie antenna for 2.45 GHz Radio Frequency Identification (RFID) readers. The antenna is optimized using different algorithms integrated with the CST Microwave studio. Four algorithms are compared: Genetic Algorithm (GA), Particle Swarm Optimization (PSO), hybrid approach involving Genetic Algorithm (GA) and Nelder-Mead (NM) algorithm (GA-NM), and a hybrid approach involving PSO and Nelder-Mead optimization algorithm (PSO-NM). It is anticipated that the introduced hybrid approaches are more efficient and can be applied to other types of antennas.","PeriodicalId":438638,"journal":{"name":"2011 28th National Radio Science Conference (NRSC)","volume":"30 Suppl 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131892260","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}
Pub Date : 2011-04-26DOI: 10.1109/NRSC.2011.5873599
Hany Ismail, E. Sourour
Femtocells are low-power, very small-service-area (e.g. home or office environment) cellular base stations that will significantly impact the cellular landscape in the next several years. One of the most important open technical issues related to femtocells concerns the impact of femtocells on the performance of the conventional macro-cell system and the whole two-tier system [1], in this paper, a study of LTE wireless mobile system is proposed; First System Performance is modelled and simulated for the effect of insertion of closed subscriber group femto Access Points (FAPs) into the network and how it affects the overall performance of the systems.
{"title":"Downlink interference mitigation for two-tier LTE femtocell networks","authors":"Hany Ismail, E. Sourour","doi":"10.1109/NRSC.2011.5873599","DOIUrl":"https://doi.org/10.1109/NRSC.2011.5873599","url":null,"abstract":"Femtocells are low-power, very small-service-area (e.g. home or office environment) cellular base stations that will significantly impact the cellular landscape in the next several years. One of the most important open technical issues related to femtocells concerns the impact of femtocells on the performance of the conventional macro-cell system and the whole two-tier system [1], in this paper, a study of LTE wireless mobile system is proposed; First System Performance is modelled and simulated for the effect of insertion of closed subscriber group femto Access Points (FAPs) into the network and how it affects the overall performance of the systems.","PeriodicalId":438638,"journal":{"name":"2011 28th National Radio Science Conference (NRSC)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114076502","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}
Pub Date : 2011-04-26DOI: 10.7763/IJCCE.2013.V2.237
H. Elkamchouchi, Eman F. Abu Elkair
Authentication and key establishment are fundamental building blocks for securing electronic communication. Cryptographic algorithm for encryption and integrity cannot perform their function unless secure keys have been established and the users know which parties share such keys. It is essential that protocols for providing and key establishment are fit for their purpose. This paper proposes a new and efficient key establishment protocol in the asymmetric (public key) setting that is based on MTI (Matsumoto, Takashima and Imai)-two pass key agreement protocol which consists of three phases; The Transfer and Verification Phase, and The Key Generation Phase. This protocol is strong against most of potential attacks(Known-Key Security, Forward (Perfect) Secrecy, Key-Compromise Impersonation, Unknown Key-Share Attack, Small Subgroup Attack, and Man-in-the-Middle Attack) with low complexity (complexity is 4), also it provide authentication between the two entities before exchanging the session keys.
{"title":"An efficient protocol for authenticated key agreement","authors":"H. Elkamchouchi, Eman F. Abu Elkair","doi":"10.7763/IJCCE.2013.V2.237","DOIUrl":"https://doi.org/10.7763/IJCCE.2013.V2.237","url":null,"abstract":"Authentication and key establishment are fundamental building blocks for securing electronic communication. Cryptographic algorithm for encryption and integrity cannot perform their function unless secure keys have been established and the users know which parties share such keys. It is essential that protocols for providing and key establishment are fit for their purpose. This paper proposes a new and efficient key establishment protocol in the asymmetric (public key) setting that is based on MTI (Matsumoto, Takashima and Imai)-two pass key agreement protocol which consists of three phases; The Transfer and Verification Phase, and The Key Generation Phase. This protocol is strong against most of potential attacks(Known-Key Security, Forward (Perfect) Secrecy, Key-Compromise Impersonation, Unknown Key-Share Attack, Small Subgroup Attack, and Man-in-the-Middle Attack) with low complexity (complexity is 4), also it provide authentication between the two entities before exchanging the session keys.","PeriodicalId":438638,"journal":{"name":"2011 28th National Radio Science Conference (NRSC)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115351086","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}
Pub Date : 2011-04-26DOI: 10.1109/NRSC.2011.5873607
L. Khalaf, Abdel-Latif Alshalalfah, Daoud Burghal
The 802.15.4 was chosen by Zigbee as the physical layer due to its characteristics; low power and low hardware complexity. This will make it available in a large number of devices ranging from remote controls to wireless sensors. We present a design for the Baseband section of the PHY and a laboratory testing environment where the real world impairments are simulated and controlled by the user to test the hardware implementation in real time. The Modem was implemented on a field programmable gate array (FPGA) software defined radio (SDR).
{"title":"Design and laboratory testing of 802.15.4 2.4 GHz baseband modem","authors":"L. Khalaf, Abdel-Latif Alshalalfah, Daoud Burghal","doi":"10.1109/NRSC.2011.5873607","DOIUrl":"https://doi.org/10.1109/NRSC.2011.5873607","url":null,"abstract":"The 802.15.4 was chosen by Zigbee as the physical layer due to its characteristics; low power and low hardware complexity. This will make it available in a large number of devices ranging from remote controls to wireless sensors. We present a design for the Baseband section of the PHY and a laboratory testing environment where the real world impairments are simulated and controlled by the user to test the hardware implementation in real time. The Modem was implemented on a field programmable gate array (FPGA) software defined radio (SDR).","PeriodicalId":438638,"journal":{"name":"2011 28th National Radio Science Conference (NRSC)","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125032305","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}
Pub Date : 2011-04-26DOI: 10.1109/NRSC.2011.5873609
Sherief M. Hashimaa, I. Mahmoud, A. A. Elazm
In this paper two different Fast Block Matching Algorithms (FBMAs) are introduced and analyzed. They are One Point Pentagon Inner Search (OPPEN) and Predicted One Point Hexagon Inner Search (POPHEX) algorithms. The proposed algorithms are compared with other FBMAs like Diamond Search (DS), and Hexagonal based search (HEX) algorithms using MATLAB environment. The comparison is conducted for both motion estimation and object tracking using group of known test video sequences. The results showed that the proposed OPPEN algorithm has the best performance in terms of complexity and average cost function. Also it have the smallest tracking time consumption.
本文介绍并分析了两种不同的快速块匹配算法。它们是一点五边形内搜索(OPPEN)和预测一点六边形内搜索(POPHEX)算法。在MATLAB环境下，将所提出的算法与其他fbma如Diamond Search (DS)和hexonal based Search (HEX)算法进行了比较。利用一组已知的测试视频序列，对运动估计和目标跟踪进行了比较。结果表明，本文提出的OPPEN算法在复杂度和平均代价函数方面具有最佳性能。此外，它具有最小的跟踪时间消耗。
{"title":"Experimental comparison among Fast Block Matching Algorithms (FBMAs) for motion estimation and object tracking","authors":"Sherief M. Hashimaa, I. Mahmoud, A. A. Elazm","doi":"10.1109/NRSC.2011.5873609","DOIUrl":"https://doi.org/10.1109/NRSC.2011.5873609","url":null,"abstract":"In this paper two different Fast Block Matching Algorithms (FBMAs) are introduced and analyzed. They are One Point Pentagon Inner Search (OPPEN) and Predicted One Point Hexagon Inner Search (POPHEX) algorithms. The proposed algorithms are compared with other FBMAs like Diamond Search (DS), and Hexagonal based search (HEX) algorithms using MATLAB environment. The comparison is conducted for both motion estimation and object tracking using group of known test video sequences. The results showed that the proposed OPPEN algorithm has the best performance in terms of complexity and average cost function. Also it have the smallest tracking time consumption.","PeriodicalId":438638,"journal":{"name":"2011 28th National Radio Science Conference (NRSC)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132744948","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}
Pub Date : 2011-04-26DOI: 10.1109/NRSC.2011.5873632
H. Elbadawy
Nowadays, mobile communication has become an essential for the human life. On the other hand, there is a booming in the developed technologies. So, the operators are facing a lot of problems for best utilizations of the operation of coexisting radio access technologies (RATs) that they may have. The RAT selection algorithm is one of the key research areas in Common Radio Resource Management (CRRM). CRRM is used to enhance the selection of the suitable RAT in the heterogeneous wireless networks (HWN). Selection of the suitable RAT maximizes the HWN performance and its Quality of Service (QoS) by allocating users to the most suitable RAT in the case of two or more RATs co-located in the same coverage area. This paper evaluates the performance of HWN with three different RATs. Four different CRRM RAT selection algorithms are compared, load balancing (LB), service based (SB), priority based (PB), and random selection (RS). The results of GERAN900, the best utilization of the available Radio Resource Units (RRUs) are occurred with the deployment of SB algorithm. On the other hand, the GERAN1800 is best utilized with the deployment of LB algorithm. Un-served users are minimized by operation with 40∼43dBm transmutation power.
{"title":"Optimal RAT selection algorithm through Common Radio Resource Management in heterogeneous wireless networks","authors":"H. Elbadawy","doi":"10.1109/NRSC.2011.5873632","DOIUrl":"https://doi.org/10.1109/NRSC.2011.5873632","url":null,"abstract":"Nowadays, mobile communication has become an essential for the human life. On the other hand, there is a booming in the developed technologies. So, the operators are facing a lot of problems for best utilizations of the operation of coexisting radio access technologies (RATs) that they may have. The RAT selection algorithm is one of the key research areas in Common Radio Resource Management (CRRM). CRRM is used to enhance the selection of the suitable RAT in the heterogeneous wireless networks (HWN). Selection of the suitable RAT maximizes the HWN performance and its Quality of Service (QoS) by allocating users to the most suitable RAT in the case of two or more RATs co-located in the same coverage area. This paper evaluates the performance of HWN with three different RATs. Four different CRRM RAT selection algorithms are compared, load balancing (LB), service based (SB), priority based (PB), and random selection (RS). The results of GERAN900, the best utilization of the available Radio Resource Units (RRUs) are occurred with the deployment of SB algorithm. On the other hand, the GERAN1800 is best utilized with the deployment of LB algorithm. Un-served users are minimized by operation with 40∼43dBm transmutation power.","PeriodicalId":438638,"journal":{"name":"2011 28th National Radio Science Conference (NRSC)","volume":"401 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132208420","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}
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