Ant-Colony Based User Grouping Modelling for Fast Cellular Networks

2021 ◽  
pp. 259-267
Author(s):  
Ahmed Abdullah Ahmed Alhanik ◽  
Nur Asyiqin Hamzah ◽  
Hadhrami Ab. Ghani ◽  
Mohammed Ahmed Salem ◽  
Azlan Abdul Aziz ◽  
...  
Author(s):  
Hadhrami Ab. Ghani ◽  
Asyiqin Amir Hamzah ◽  
Mohammed Ahmed Salem ◽  
Ahmed Abdullah Ahmed ◽  
Azlan Abd. Aziz ◽  
...  

Author(s):  
Hadhrami Ab. Ghani ◽  
Azlan Abd Aziz ◽  
Azizul Azizan ◽  
Salwani Mohd Daud

Designing uplink systems which group users with adaptive interference mitigation techniques is the objective of this research. Reduction in error rates and improvement in the energy efficiency is expected with this approach in addition to spectral efficiency. This paper reports a study on interference mitigation and transmission designs for groups of users in the uplinks. New formulations for the interference mitigation are produced based on the minimum mean square error and successive interference cancellation approach. By reducing the interference, the energy efficiency can be maintained and improved although the number of users per group increases. The measured error rates of this approach with user grouping achieve gains between 1 to 3 dB against that of the existing approach. With reduced complexity, the proposed scheme should be viable for practical deployment.


Author(s):  
Akhileswar Chowdary ◽  
Garima Chopra ◽  
Abhinav Kumar ◽  
Linga Reddy Cenkeramaddi

Author(s):  
Hadhrami Ab. Ghani ◽  
Azlan Abd Aziz ◽  
Azizul Azizan ◽  
Salwani Mohd Daud

Designing uplink systems which group users with adaptive interference mitigation techniques is the objective of this research. Reduction in error rates and improvement in the energy efficiency is expected with this approach in addition to spectral efficiency. This paper reports a study on interference mitigation and transmission designs for groups of users in the uplinks. New formulations for the interference mitigation are produced based on the minimum mean square error and successive interference cancellation approach. By reducing the interference, the energy efficiency can be maintained and improved although the number of users per group increases. The measured error rates of this approach with user grouping achieve gains between 1 to 3 dB against that of the existing approach. With reduced complexity, the proposed scheme should be viable for practical deployment.


Author(s):  
Bartłomiej Błaszczyszyn ◽  
Martin Haenggi ◽  
Paul Keeler ◽  
Sayandev Mukherjee

2012 ◽  
Author(s):  
Earth B. Ugat ◽  
Jennifer Joyce M. Montemayor ◽  
Mark Anthony N. Manlimos ◽  
Dante D. Dinawanao

Author(s):  
Hoang Nhu Dong ◽  
Hoang Nam Nguyen ◽  
Hoang Trong Minh ◽  
Takahiko Saba

Femtocell networks have been proposed for indoor communications as the extension of cellular networks for enhancing coverage performance. Because femtocells have small coverage radius, typically from 15 to 30 meters, a femtocell user (FU) walking at low speed can still make several femtocell-to-femtocell handovers during its connection. When performing a femtocell-to-femtocell handover, femtocell selection used to select the target handover femtocell has to be able not only to reduce unnecessary handovers and but also to support FU’s quality of service (QoS). In the paper, we propose a femtocell selection scheme for femtocell-tofemtocell handover, named Mobility Prediction and Capacity Estimation based scheme (MPCE-based scheme), which has the advantages of the mobility prediction and femtocell’s available capacity estimation methods. Performance results obtained by computer simulation show that the proposed MPCE-based scheme can reduce unnecessary femtocell-tofemtocell handovers, maintain low data delay and improve the throughput of femtocell users. DOI: 10.32913/rd-ict.vol3.no14.536


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