Cross Layer AMC Scheduling for a Cooperative Wireless Communication System over Nakagami-m Fading Channels

2012 ◽  
Vol 11 (6) ◽  
pp. 2330-2341 ◽  
Author(s):  
Ning Wang ◽  
T. A. Gulliver
Keyword(s):  
Wireless Communication ◽  
Fading Channels ◽  
Communication System ◽  
Cross Layer ◽  
Wireless Communication System

scholarly journals Age of Information in an URLLC-enabled Decode-and-Forward Wireless Communication System

2021 ◽  
Author(s):  
chathuranga basnayaka
Keyword(s):  
Wireless Communication ◽  
Fading Channels ◽  
Communication System ◽  
Queuing Theory ◽  
Transportation Systems ◽  
Block Length ◽  
Closed Form Expression ◽  
Wireless Communication System ◽  
The Impact ◽  
Age Of Information

<div>Age of Information (AoI) measures the freshness of data in mission critical Internet-of-Things (IoT) applications i.e., industrial internet, intelligent transportation systems etc. In this paper, a new system model is proposed to estimate the average AoI (AAoI) in an ultra-reliable low latency communication (URLLC) enabled wireless communication system with decodeand- forward relay scheme over the quasi-static Rayleigh block fading channels. Short packet communication scheme is used to meet both reliability and latency requirements of the proposed wireless network. By resorting finite block length information theory, queuing theory and stochastic processes, a closed-form expression for AAoI is obtained. Finally, the impact of the system parameters, such as update generation rate, block length and block length allocation factor on the AAoI are investigated. All results are validated by the numerical results.</div>

scholarly journals Performance Evaluation of Mimo System with Massive Antenna Arrays

2019 ◽  
Vol 8 (10) ◽  
pp. 981-984
Keyword(s):  
Wireless Communication ◽  
Fading Channels ◽  
Antenna Arrays ◽  
Communication System ◽  
Mimo System ◽  
Signal To Noise Ratio ◽  
Phase Error ◽  
High Standard ◽  
Limited Bandwidth ◽  
Wireless Communication System

In the ground of digital word, wireless communication system has widespread functions. The demand for wireless communication is growing day by day. All users want better quality service in scope of wireless communication. Due to high bit error rate (BER), low signal to noise ratio (SNR), limited bandwidth and high standard deviation (SD) of phase error conventional wireless communiqué systems like SISO, SIMO and MISO flops to gather the mounting demand of users. Therefore a new technique MIMO system is realized whose performance is evaluated by parameters BER, SNR and SD of Phase Error. Latest approach for increasing the performance of virtual MIMO communications within peers by ill-treatment situation with giant antenna arrays is developed. MIMO provides low BER and low SD of Phase Error with increased SNR, which forms a good feature for wireless communication system. In this paper, performance of MIMO is assessed under Nakagami-m and Rayleigh fading channels. For a wireless system BER and SD of phase error should be minimum, which is achieved in MIMO system.

scholarly journals Age of Information in an URLLC-enabled Decode-and-Forward Wireless Communication System

2021 ◽  
Author(s):  
chathuranga basnayaka
Keyword(s):  
Wireless Communication ◽  
Fading Channels ◽  
Communication System ◽  
Queuing Theory ◽  
Transportation Systems ◽  
Block Length ◽  
Closed Form Expression ◽  
Wireless Communication System ◽  
The Impact ◽  
Age Of Information

<div>Age of Information (AoI) measures the freshness of data in mission critical Internet-of-Things (IoT) applications i.e., industrial internet, intelligent transportation systems etc. In this paper, a new system model is proposed to estimate the average AoI (AAoI) in an ultra-reliable low latency communication (URLLC) enabled wireless communication system with decodeand- forward relay scheme over the quasi-static Rayleigh block fading channels. Short packet communication scheme is used to meet both reliability and latency requirements of the proposed wireless network. By resorting finite block length information theory, queuing theory and stochastic processes, a closed-form expression for AAoI is obtained. Finally, the impact of the system parameters, such as update generation rate, block length and block length allocation factor on the AAoI are investigated. All results are validated by the numerical results.</div>

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