Papers by SAEED A H M E D AL-RASHDY
Zenodo (CERN European Organization for Nuclear Research), Feb 28, 2012
The IEEE802.16 standard which has emerged as Broadband Wireless Access (BWA) technology, promises... more The IEEE802.16 standard which has emerged as Broadband Wireless Access (BWA) technology, promises to deliver high data rate over large areas to a large number of subscribers in the near future. This paper analyze the effect of overheads over capacity of downlink (DL) of orthogonal frequency division multiple access (OFDMA)-based on the IEEE802.16e mobile WiMAX system with and without overheads. The analysis focuses in particular on the impact of Adaptive Modulation and Coding (AMC) as well as deriving an algorithm to determine the maximum numbers of subscribers that each specific WiMAX sector may support. An analytical study of the WiMAX propagation channel by using Cost-231 Hata Model is presented. Numerical results and discussion estimated by using Matlab to simulate the algorithm for different multi-users parameters.
Capacity and cell range estimation of mobile WiMAX
The IEEE802.16 standard which has emerged as Broadband Wireless Access (BWA) technology, promises... more The IEEE802.16 standard which has emerged as Broadband Wireless Access (BWA) technology, promises to deliver high data rate over large areas to a large number of subscribers in the near future. This paper analyzes the cell-range and capacity of downlink of OFDMA -based on the IEEE802.16e mobile WiMAX system with and without overheads. The analysis focuses in particular on the impact of Adaptive Modulation and Coding (AMC) as well as deriving an algorithm to determine the maximum numbers of subscribers that each specific WiMAX sector may support. An analytical study of the WiMAX propagation channel by using Cost-231 Hata Model is presented. Numerical results and discussion highlight the effect of overheads over the WiMAX system capacity by using Matlab to simulate the algorithm for different multi-users parameters.
Capacity Estimation for Multitraffic Users in Mobile WiMAX
In this paper we present an algorithm to calculate actual capacity and a traffic model for mixed ... more In this paper we present an algorithm to calculate actual capacity and a traffic model for mixed application users for WiMAX in download, and derive an algorithm to determine the maximum numbers of subscribers that each specific WiMAX sector may support. Numerical results and discussion highlight the effect of overheads over WiMAX system capacity; also we simulated the algorithm for
In this paper we study a factors influencing system bandwidth capacity in IEEE 802.16e networks. ... more In this paper we study a factors influencing system bandwidth capacity in IEEE 802.16e networks. The system capacity of 802.16j also investigated and evaluated to understanding how the relay architecture can lead to capacity increases in the downlink. An analytical study of the WiMAX propagation channel by using Cost-231 Hata Model is presented. This model performance in different frequency band, and also the SNR achieved under different frequency band. The useful bandwidth for WiMAX in downlink and calculation the maximum numbers of subscriber station (SS) based on traffic modelling also calculated. Numerical results and discussion highlight the effect of factors over WiMAX capacity; also we simulated the modeling for different system parameter and traffic cases to ease the mobile WiMAX planning using MATLAB. Keywords WiMAX capacity ； IEEE802.16j ； mobile WiMAX ； SNR ； Cost-231 Hata. I. Saeed Ahmed AL-Rashdy received the B.S degree in electronics and communication engineering from mosul university , mosul, Iraq, in 2000 and the M.S. degrees from Harbin Institute of Technology(HIT), Harbin, china, in 2010. He is now a Ph.D. candidate at Harbin Institute of Technology(HIT). He has currently focused on mobile wimax QoS, capacity estimation and call admission control (CAC).
Overhead Estimation over Capacity of Mobile WiMAX
World Academy of Science, Engineering and Technology, International Journal of Electrical, Computer, Energetic, Electronic and Communication Engineering, 2012
The IEEE802.16 standard which has emerged as Broadband Wireless Access (BWA) technology, promises... more The IEEE802.16 standard which has emerged as Broadband Wireless Access (BWA) technology, promises to deliver high data rate over large areas to a large number of subscribers in the near future. This paper analyze the effect of overheads over capacity of downlink (DL) of orthogonal frequency division multiple access (OFDMA)–based on the IEEE802.16e mobile WiMAX system with and without overheads. The analysis focuses in particular on the impact of Adaptive Modulation and Coding (AMC) as well as deriving an algorithm to determine the maximum numbers of subscribers that each specific WiMAX sector may support. An analytical study of the WiMAX propagation channel by using Cost231 Hata Model is presented. Numerical results and discussion estimated by using Matlab to simulate the algorithm for different multi-users parameters. Keywords—BWA, mobile WiMAX, capacity, AMC , overheads.
Wimax Capacity Estimation through Different Channel tion through Different Channel tion through Different Channel tion through Different Channel C haracteristic
In this paper we study the factors influencing system bandwidth c apacity in IEEE 802.16e network... more In this paper we study the factors influencing system bandwidth c apacity in IEEE 802.16e networks. Additionally, we investigate and evaluate the system capacity of 802.16j in order to understand how the relay architecture can lead to capacity increases in the downlink. An analytical study of the WiMAX propagation channel by using Cost-231 Hata Model is presented. This model performed in different frequency bands; the Signal to Noise Ratio (SNR) is achieved under different frequency band as well. The useful bandwidth for WiMAX in the downlink helped us calculate the maximum numbers of subscriber station (SS) based on traffic modeling. Numerical results and discussion highlight the effect of factors over WiMAX capacity; we also simulated the modeling for different system parameters and traffic cases to ease the mobile WiMAX planning using MATLAB.
Wimax Capacity Estimation Through Different Channel Characterstic
In this paper we study a factors influencing system bandwidth capacity in IEEE 802.16e networks. ... more In this paper we study a factors influencing system bandwidth capacity in IEEE 802.16e networks. The system capacity of 802.16j also investigated and evaluated to understanding how the relay architecture can lead to capacity increases in the downlink. An analytical study of the WiMAX propagation channel by using Cost-231 Hata Model is presented. This model performance in different frequency band, and also the SNR achieved under different frequency band. The useful bandwidth for WiMAX in downlink and calculation the maximum numbers of subscriber station (SS) based on traffic modelling also calculated. Numerical results and discussion highlight the effect of factors over WiMAX capacity; also we simulated the modeling for different system parameter and traffic cases to ease the mobile WiMAX planning using MATLAB.
World Academy of Science, Engineering and Technology 62 2012 Overhead Estimation over Capacity of Mobile
Broadband Wireless Access (BWA) technology, promises to deliver high data rate over large areas t... more Broadband Wireless Access (BWA) technology, promises to deliver high data rate over large areas to a large number of subscribers in the near future. This paper analyze the effect of overheads over capacity of downlink (DL) of orthogonal frequency division multiple access (OFDMA)–based on the IEEE802.16e mobile WiMAX system with and without overheads. The analysis focuses in particular on the impact of Adaptive Modulation and Coding (AMC) as well as deriving an algorithm to determine the maximum numbers of subscribers that each specific WiMAX sector may support. An analytical study of the WiMAX propagation channel by using Cost-231 Hata Model is presented. Numerical results and discussion estimated by using Matlab to simulate the algorithm for different multi-users parameters.
Capacity Estimation for Multitraffic Users in Mobile WiMAX
International Conference on Wireless Communications, Networking and Mobile Computing, 2011
In this paper we present an algorithm to calculate actual capacity and a traffic model for mixed ... more In this paper we present an algorithm to calculate actual capacity and a traffic model for mixed application users for WiMAX in download, and derive an algorithm to determine the maximum numbers of subscribers that each specific WiMAX sector may support. Numerical results and discussion highlight the effect of overheads over WiMAX system capacity; also we simulated the algorithm for
Uploads
Papers by SAEED A H M E D AL-RASHDY