Zobrazeno 1 - 10
of 280
pro vyhledávání: '"Ammar, Hussein A."'
Autor:
Mohammed, Anas S., Ammar, Hussein A., Tharakan, Krishnendu S., ElSawy, Hesham, Hassanein, Hossam S.
The cost and limited capacity of fronthaul links pose significant challenges for the deployment of ultra-dense networks (UDNs), specifically for cell-free massive MIMO systems. Hence, cost-effective planning of reliable fronthaul networks is crucial
Externí odkaz:
http://arxiv.org/abs/2412.15478
Autor:
Hammam, Ahmed Ammar Hussein
Publikováno v:
Arab journal of library and information science, v. 41, issue 1, January, 2021
Subject headings are very important to machine catalogs, given the importance of thematic research. This study aims to measure the quality of a group of authorized subject headings with a sample of Arabic bibliographic records on the catalog of Egypt
Externí odkaz:
http://arxiv.org/abs/2403.18106
Autor:
Ammar, Hussein A., Adve, Raviraj, Shahbazpanahi, Shahram, Boudreau, Gary, Srinivas, Kothapalli Venkata
We study the problem of managing handoffs (HOs) in user-centric cell-free massive MIMO (UC-mMIMO) networks. Motivated by the importance of controlling the number of HOs and by the correlation between efficient HO decisions and the temporal evolution
Externí odkaz:
http://arxiv.org/abs/2403.08900
Autor:
Ammar, Hussein A., Adve, Raviraj, Shahbazpanahi, Shahram, Boudreau, Gary, Srinivas, Kothapalli Venkata
We propose to control handoffs (HOs) in user-centric cell-free massive MIMO networks through a partially observable Markov decision process (POMDP) with the state space representing the discrete versions of the large-scale fading (LSF) and the action
Externí odkaz:
http://arxiv.org/abs/2208.02384
We consider the analysis and design of distributed wireless networks wherein remote radio heads (RRHs) coordinate transmissions to serve multiple users on the same resource block (RB). Specifically, we analyze two possible multiple-input multiple-out
Externí odkaz:
http://arxiv.org/abs/2111.09826
Autor:
Ammar, Hussein A., Adve, Raviraj, Shahbazpanahi, Shahram, Boudreau, Gary, Srinivas, Kothapalli Venkata
We develop two distributed downlink resource allocation algorithms for user-centric, cell-free, spatially-distributed, multiple-input multiple-output (MIMO) networks. In such networks, each user is served by a subset of nearby transmitters that we ca
Externí odkaz:
http://arxiv.org/abs/2110.08154
Autor:
Ammar, Hussein A., Adve, Raviraj, Shahbazpanahi, Shahram, Boudreau, Gary, Srinivas, Kothapalli Venkata
In this letter, we emulate real-world statistics for mobility patterns on road systems. We then propose modifications to the assumptions of the random waypoint (RWP) model to better represent high-mobility profiles. We call the model under our new fr
Externí odkaz:
http://arxiv.org/abs/2109.05978
Autor:
Ammar, Hussein A., Adve, Raviraj, Shahbazpanahi, Shahram, Boudreau, Gary, Srinivas, Kothapalli Venkata
In this paper, we optimize user scheduling, power allocation and beamforming in distributed multiple-input multiple-output (MIMO) networks implementing user-centric clustering. We study both the coherent and non-coherent transmission modes, formulati
Externí odkaz:
http://arxiv.org/abs/2108.06316
Autor:
Ammar, Hussein A., Adve, Raviraj, Shahbazpanahi, Shahram, Boudreau, Gary, Srinivas, Kothapalli Venkata
Densification of network base stations is indispensable to achieve the stringent Quality of Service (QoS) requirements of future mobile networks. However, with a dense deployment of transmitters, interference management becomes an arduous task. To so
Externí odkaz:
http://arxiv.org/abs/2104.14589
In this paper, we study the deployment decisions and location optimization for the remote radio heads (RRHs) in coordinated distributed networks in the presence of a wireless backhaul. We implement a scheme where the RRHs use zero-forcing beamforming
Externí odkaz:
http://arxiv.org/abs/2102.02970