scholarly journals Design and Experimental Validation of Radio Access Network Controller Prototype for Multi-RAT Technologies with Scheduler Strategies

2021 ◽  
Author(s):  
Md Arifur Rahman ◽  
Adam Flizikowski ◽  
Slawomir Pietrzyk ◽  
Md Munjure Mowla
Keyword(s):  
Comparative Analysis ◽  
Experimental Validation ◽  
Access Network ◽  
Network Protocols ◽  
Coordination Strategies ◽  
Parametric Control ◽  
Radio Access ◽  
Network Controller ◽  
Channel Conditions ◽  
Dynamic Channel

The main aspects of this paper are to show the involvement towards coordination strategies amongst multiple RATs and integration of parametric control of higher MAC and upper layer network protocols. Moreover, we also evaluate and examine the possibility to take advantage of the fact of using interworking concepts such as lightweight Internet protocol (LWIP) and LTE-WLAN aggregation (LWA) while making the scheduling decisions. Such a solution would contribute to the software-defined networking (SDN) approach, where multi-RAT aware scheduler adapts to dynamic channel conditions to provide robustness against severe real-time channel conditions. Finally, we provide comparative analysis of multi- RAT scenarios and evaluate the QoE performance of different scheduling algorithms with SINR based information centric LWA switching and QoE-aware LWA switching by using RANC.

scholarly journals Design and Experimental Validation of Radio Access Network Controller Prototype for Multi-RAT Technologies with Scheduler Strategies

2021 ◽  
Author(s):  
Md Arifur Rahman ◽  
Adam Flizikowski ◽  
Slawomir Pietrzyk ◽  
Md Munjure Mowla
Keyword(s):  
Comparative Analysis ◽  
Experimental Validation ◽  
Access Network ◽  
Network Protocols ◽  
Coordination Strategies ◽  
Parametric Control ◽  
Radio Access ◽  
Network Controller ◽  
Channel Conditions ◽  
Dynamic Channel

The main aspects of this paper are to show the involvement towards coordination strategies amongst multiple RATs and integration of parametric control of higher MAC and upper layer network protocols. Moreover, we also evaluate and examine the possibility to take advantage of the fact of using interworking concepts such as lightweight Internet protocol (LWIP) and LTE-WLAN aggregation (LWA) while making the scheduling decisions. Such a solution would contribute to the software-defined networking (SDN) approach, where multi-RAT aware scheduler adapts to dynamic channel conditions to provide robustness against severe real-time channel conditions. Finally, we provide comparative analysis of multi- RAT scenarios and evaluate the QoE performance of different scheduling algorithms with SINR based information centric LWA switching and QoE-aware LWA switching by using RANC.

scholarly journals Cooperation and information replication in wireless networks

2016 ◽  
Vol 374 (2062) ◽  
pp. 20150123 ◽  
Author(s):  
Konstantinos Poularakis ◽  
Leandros Tassiulas
Keyword(s):  
Network Performance ◽  
Access Network ◽  
Network Architectures ◽  
Backbone Networks ◽  
Network Bandwidth ◽  
Multicast Service ◽  
Radio Access ◽  
Maximum Benefit ◽  
Wireless Medium ◽  
Cell Tower

A significant portion of today's network traffic is due to recurring downloads of a few popular contents. It has been observed that replicating the latter in caches installed at network edges—close to users—can drastically reduce network bandwidth usage and improve content access delay. Such caching architectures are gaining increasing interest in recent years as a way of dealing with the explosive traffic growth, fuelled further by the downward slope in storage space price. In this work, we provide an overview of caching with a particular emphasis on emerging network architectures that enable caching at the radio access network. In this context, novel challenges arise due to the broadcast nature of the wireless medium, which allows simultaneously serving multiple users tuned into a multicast stream, and the mobility of the users who may be frequently handed off from one cell tower to another. Existing results indicate that caching at the wireless edge has a great potential in removing bottlenecks on the wired backbone networks. Taking into consideration the schedule of multicast service and mobility profiles is crucial to extract maximum benefit in network performance.

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