Corrigendum to “Power-aware fuzzy based joint base station and relay station deployment scheme for green radio communication” [J. Sustain. Comput.: Inform. Syst. 13 (2017) 1–14]

2017 ◽  
Vol 16 ◽  
pp. 125
Author(s):  
Murugadass Arthi ◽  
Pachiyappan Arulmozhivarman
Keyword(s):  
Base Station ◽  
Relay Station ◽  
Radio Communication ◽  
Green Radio

scholarly journals A Quality-Aware Relay Station Deployment Scheme for Green Radio Communication

2016 ◽  
Vol 6 (2) ◽  
pp. 1-28
Author(s):  
M. Arthi ◽  
P. Arulmozhivarman ◽  
K. Vinoth Babu ◽  
◽  
◽  
...  
Keyword(s):  
Relay Station ◽  
Radio Communication ◽  
Green Radio

An Efficient IR-HARQ Power Allocation for Relay-Aided Cellular Networks

2018 ◽  
Vol 27 (12) ◽  
pp. 1850195
Author(s):  
P. Mangayarkarasi ◽  
J. Raja
Keyword(s):  
Power Allocation ◽  
Cellular Networks ◽  
Channel Capacity ◽  
Energy Efficient ◽  
Base Station ◽  
Relay Station ◽  
Decode And Forward ◽  
Relay Placement ◽  
Cell Coverage ◽  
The Impact

Energy-efficient and reliable data transmission is a challenging task in wireless relay networks (WRNs). Energy efficiency in cellular networks has received significant attention because of the present need for reduced energy consumption, thereby maintaining the profitability of networks, which in turn makes these networks “greener”. The urban cell topography needs more energy to cover the total area of the cell. The base station does not cover the entire area in a given topography and adding more number of base stations is a cost prohibitive one. Energy-efficient relay placement model which calculates the maximum cell coverage is proposed in this work that covers all sectors and also an energy-efficient incremental redundancy-hybrid automatic repeat request (IR-HARQ) power allocation scheme to improve the reliability of the network by improving the overall network throughput is proposed. An IR-HARQ power allocation method maximizes the average incremental mutual information at each round, and its throughput quickly converges to the ergodic channel capacity as the number of retransmissions increases. Simulation results show that the proposed IR-HARQ power allocation achieves full channel capacity with average transmission delay and maintains good throughput under less power consumption. Also the impact of relaying performance on node distances between relay station and base station as well as between user and relay station and relay height for line of sight conditions are analyzed using full decode and forward (FDF) and partial decode and forward (PDF) relaying schemes. Compared to FDF scheme, PDF scheme provides better performance and allows more freedom in the relay placement for an increase in cell coverage.

scholarly journals Performance of Base Stations in Railway Digital Radio Communication Networks

2021 ◽  
Vol 19 (2) ◽  
pp. 41-48
Author(s):  
Yu. V. Nemtsov ◽  
I. V. Seryogin ◽  
P. I. Volnov
Keyword(s):  
Communication Network ◽  
Communication Networks ◽  
Base Station ◽  
Base Stations ◽  
Radio Communication ◽  
Radio Communications ◽  
Digital Radio ◽  
Cargo Transportation ◽  
Assess Quality

Base station (BS) is a terminal device of a radio communication network, while railway radio communications play an important role in ensuring safety of passenger and cargo transportation.A proposed method for calculating the performance of base stations in railway digital radio communication networks is intended to calculate for the BS the probabilities of being in certain state.BS was decomposed and such functional elements as circuit groups and a radio frequency path were identified, as well as the central module ensuring the exchange of information with elements of this BS and with other BSs. A detailed study of each element has increased accuracy of the proposed method. Following the Markov model, BS is presented as a system in which all possible states are considered. Models for BS with two and three circuit groups have been constructed. The parameters of each functional element of the model can be obtained through observation over a certain period. The solution of the system of equations for each of the models presented in the article will allow obtaining the values of the system being in a certain state. The obtained characteristics can be used to calculate the reliability of the entire radio communication network, and then to assess quality of service provided to the users of this network.Conclusions are made about the possibilities of using the obtained models when designing new railway communication networks and when calculating quality indices of existing ones. The proposed models can be applied not only to railway radio communication networks but also to mobile communication networks of commercial operators. 

A Switch On/Off Relaying Scheme in TDMB Cooperative System

2013 ◽  
Vol 462-463 ◽  
pp. 167-170
Author(s):  
Jin Ren
Keyword(s):  
Wireless Channels ◽  
Base Station ◽  
Digital Television ◽  
Relay Station ◽  
Cooperative System ◽  
Wireless System ◽  
Digital Multimedia ◽  
Relay Stations

Terrestrial Digital Multimedia Broadcasting (TDMB) is one popular broadcasting standard that enable digital television transmissions to hand held receivers and cooperative system take advantage of the broadcast nature of wireless channels, uses relay stations as virtual antennas. Relay stations are an attractive solution to penetrate the wireless system with lower transmitting power at the Base station. In this paper, we presented a scheme can switch on/off the power weighting ratio between Base station and Relay station in TDMB cooperative system. It will control the active relays in different channel propagations effectively.

Lessons learned from the Hospital Without Walls project

2002 ◽  
Vol 8 (3_suppl) ◽  
pp. 11-14 ◽  
Author(s):  
Michael Dadd ◽  
Briony Doyle ◽  
Laurie Wilson ◽  
Marcus Gunaratnam
Keyword(s):  
Vital Signs ◽  
Home Monitoring ◽  
Relevant Information ◽  
Base Station ◽  
Lessons Learned ◽  
Physiological Data ◽  
Prototype System ◽  
Radio Communication ◽  
Radio System ◽  
Emergency Events

summary The Hospital Without Walls is an ongoing ambitious project in home telecare that incorporates research into physiological monitoring, low-power radio communication, database storage of physiological data and methods of viewing clinically relevant information from large quantities of stored data. The system records vital signs from patients in their homes using a body-mounted, two-way radio system and a base station located in the home, which transmits data records to a central recording facility every day or in response to predefined emergency events. The prototype system has successfully undergone preliminary clinical trials, with a particular clinical emphasis on monitoring activity using three-axis accelerometers. Our experience with the trial suggests that there are significant differences in the technical design required for a long-term, home monitoring system and one where monitoring takes place in an environment staffed by health professionals.

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