LTE channel throughput assessment and comparison under different terrain

2018 ◽  
Vol 31 (10) ◽  
pp. e3586
Author(s):  
Ankit Saxena ◽  
Ravi Sindal
Keyword(s):  
Channel Throughput

scholarly journals Noise uncertainty effect on multi-channel cognitive radio networks

2020 ◽  
Vol 10 (5) ◽  
pp. 4818
Author(s):  
Amira Osama ◽  
Heba A. Tag El-Dien ◽  
Ahmad A. Aziz El-Banna ◽  
Adly S. Tag El-Dien
Keyword(s):  
Cognitive Radio ◽  
Cognitive Radio Networks ◽  
Feature Detection ◽  
Matched Filter ◽  
Energy Detection ◽  
Radio Networks ◽  
Main Process ◽  
Fluctuation Effect ◽  
Noise Uncertainty ◽  
Channel Throughput

Achieving high throughput is the most important goal of cognitive radio networks. The main process in cognitive radio is spectrum sensing that targets getting vacant channels. There are many sensing methods like matched filter, feature detection, interference temperature and energy detection which is employed in the proposed system; however, energy detection suffers from noise uncertainty. In this paper a study of throughput under noise fluctuation effect is introduced. The work in this paper proposes multi-channel system; the overall multi-channel throughput is studied under noise fluctuation effect. In addition, the proficiency of the network has been examined under different number of channels and sensing time with noise uncertainty.

scholarly journals An Improved CF-MAC Protocol for VANET

2019 ◽  
Vol 9 (4) ◽  
pp. 2668 ◽  
Author(s):  
Ghassan Samara
Keyword(s):  
Ad Hoc ◽  
Mac Protocol ◽  
High Reliability ◽  
Evaluation Criteria ◽  
Traffic Information ◽  
Future Technology ◽  
Research Areas ◽  
Message Loss ◽  
Channel Performance ◽  
Channel Throughput

<p>Vehicular Ad hoc Network (VANET) is one of the emerging research areas in the mobile computing field which is considered as future technology and promising topic in computer science and computer networks. Which provides road safety, updated traffic information, and infotainment. VANET consists of a large number of vehicles moving in high speeds while broadcasting important information like safety and control information which must be sent with high priority. Crowded networks like VANET having many vehicles competing to reserve the channel to send critical information which may lead to high collision scenarios, and therefore, there must be a protocol to send this kind of information with high reliability, low data loss and with no collision. In this research a collision-free protocol will be proposed to manage the channel access among competing vehicles to eliminate the collisions which occur rapidly in VANET especially in dense situations, the proposed protocol hereinafter will be called (I-MAC) protocol expected to enhance the channel performance, achieve load balancing, fairness, and decrease message loss and enhance reliability, The evaluation criteria will examine the channel throughput, message delay, and message loss; the results show that the overall channel performance with regard to collision and packet loss ratio is improved.</p>

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