Mostafa Helmy - Academia.edu (original) (raw)
Uploads
Papers by Mostafa Helmy
2017 IEEE 18th Wireless and Microwave Technology Conference (WAMICON), 2017
Aerial telecommunication platforms provide a promising solution to meet surging traffic demands a... more Aerial telecommunication platforms provide a promising solution to meet surging traffic demands as a component of future communication networks. They can be used as aerial base stations (ABSs) to build an aerial heterogeneous network architecture. In this paper, we consider a scenario where high and low altitude platforms (HAPs & LAPs) collaborate to construct such a network and analyze its performance. Firstly, we determine for each user the probability of being associated with either one of the HAP or LAP. From the association probability, the cell load of ABSs is derived. Secondly, we propose a dynamic placement and sizing algorithm for cells established by LAPs, to achieve load balancing and enhance the QoS for overall users inside the coverage of a HAP. We show, through simulation results, that the algorithm provides considerable gain over static aerial cellular networks.
Journal of Communications and Networks, 2018
2015 IEEE Conference on Standards for Communications and Networking (CSCN), 2015
Aerial telecommunication platforms will be a part of the future communication networks. In this p... more Aerial telecommunication platforms will be a part of the future communication networks. In this paper, we address the issue of optimizing the location of Aerial Base Stations (ABS) in Low Altitude Platforms (LAP) to minimize the power consumption. We propose a dynamic algorithm which attempts to maximize the received power at ABS by moving it between multiple points within its coverage area. Furthermore, outage probability formula for each user has been derived to measure how much gain this algorithm can offer in line of sight (LOS) and non line of sight (NLOS) cases. Simulation results show that the employment of this algorithm saves more than 10 dB per user in case of Poisson distributed users.
2017 IEEE 18th Wireless and Microwave Technology Conference (WAMICON), 2017
Aerial telecommunication platforms provide a promising solution to meet surging traffic demands a... more Aerial telecommunication platforms provide a promising solution to meet surging traffic demands as a component of future communication networks. They can be used as aerial base stations (ABSs) to build an aerial heterogeneous network architecture. In this paper, we consider a scenario where high and low altitude platforms (HAPs & LAPs) collaborate to construct such a network and analyze its performance. Firstly, we determine for each user the probability of being associated with either one of the HAP or LAP. From the association probability, the cell load of ABSs is derived. Secondly, we propose a dynamic placement and sizing algorithm for cells established by LAPs, to achieve load balancing and enhance the QoS for overall users inside the coverage of a HAP. We show, through simulation results, that the algorithm provides considerable gain over static aerial cellular networks.
Journal of Communications and Networks, 2018
2015 IEEE Conference on Standards for Communications and Networking (CSCN), 2015
Aerial telecommunication platforms will be a part of the future communication networks. In this p... more Aerial telecommunication platforms will be a part of the future communication networks. In this paper, we address the issue of optimizing the location of Aerial Base Stations (ABS) in Low Altitude Platforms (LAP) to minimize the power consumption. We propose a dynamic algorithm which attempts to maximize the received power at ABS by moving it between multiple points within its coverage area. Furthermore, outage probability formula for each user has been derived to measure how much gain this algorithm can offer in line of sight (LOS) and non line of sight (NLOS) cases. Simulation results show that the employment of this algorithm saves more than 10 dB per user in case of Poisson distributed users.