Level Crossing Rate of Next Generation Wireless Systems with Selection Combining in the Presence of k-µ Fading and Interference: Derivation and Simulation

2021 ◽  
Author(s):  
Dragana Krstic ◽  
Suad Suljovic ◽  
Nenad Petrovic ◽  
Zoran Popovic ◽  
Mihajlo Stefanovic
Keyword(s):  
Wireless Systems ◽  
Selection Combining ◽  
Next Generation ◽  
Level Crossing ◽  
Level Crossing Rate

scholarly journals LEVEL CROSSING RATE OF MACRODIVERSITY OUTPUT PROCESS IN THE PRESENCE OF η-μ SHORT TERM FADING AND GAMMA LONG TERM FADING

2017 ◽  
Vol 16 (2) ◽  
pp. 157
Author(s):  
Srđan Milosavljević ◽  
Dejan Milić ◽  
Slaviša Trajković ◽  
Petar Spalević ◽  
Bojana Milosavljević
Keyword(s):  
Multipath Fading ◽  
Selection Combining ◽  
Output Process ◽  
Level Crossing ◽  
Short Term ◽  
Signal Process ◽  
Multipath Fading Channel ◽  
Level Crossing Rate ◽  
Severity Parameter

In this paper macrodiversity reception with macrodiversity selection combining (SC) receiver and two microdiversity MRC receivers operating over shadowed multipath fading channel is studied. Received signal experiences  short term fading and correlated Gamma long term fading resulting in system performance degradation. Level crossing rate (LCR) of η-μ random process and level crossing rate of signals at outputs of microdiversity MRC receivers are efficiently calculated. By using these derived formulas, level crossing rate of macrodiversity SC receiver output signal process is calculated. By using this result, average fade duration (AFD) of the proposed wireless communication system can be calculated. The influence of  η-μ  short term fading severity parameter, Gamma long term fading severity parameter and Gamma long term correlation coefficient on level crossing rate is analysed and studied.

scholarly journals Second order statistics of the signal in Ricean-lognormal fading channel with selection combining

2007 ◽  
Vol 20 (2) ◽  
pp. 163-173 ◽  
Author(s):  
Aleksandra Mitic ◽  
Mihajlo Stefanovic
Keyword(s):  
Fading Channels ◽  
Selection Combining ◽  
Radio Communication ◽  
Level Crossing ◽  
Statistical Characterization ◽  
Ricean Fading ◽  
Second Order Statistics ◽  
Level Crossing Rate ◽  
Lognormal Shadowing ◽  
Independent Identically Distributed

Level crossing rate and average fade duration of signal envelope of selection diversity are numerically determined. Statistical characterization in fading and shadowing mobile radio communication environment are very useful and in this paper that is computed for Ricean fading channels with lognormal shadowing. The results are presented for independent identically distributed diversity branches when selection combining technique is used.

scholarly journals Second order statistics of SC receiver over k-μ multipath fading channel

2014 ◽  
Vol 11 (3) ◽  
pp. 391-401 ◽  
Author(s):  
Milos Bandjur ◽  
Dragan Radenkovic ◽  
Vladeta Milenkovic ◽  
Suad Suljevic ◽  
Danijel Djosic
Keyword(s):  
Fading Channel ◽  
Multipath Fading ◽  
Average Level ◽  
Selection Combining ◽  
Level Crossing ◽  
Multipath Fading Channel ◽  
Second Order Statistics ◽  
Level Crossing Rate ◽  
Diversity Receiver ◽  
Average Fade Duration

In this paper wireless communication system with dual branch selection combining (SC) diversity receiver operating over k-? multipath fading environment is considered. Closed form expressions for average level crossing rate of SC receiver output signal envelope and average fade duration of proposed system are evaluated. Numerical results are presented graphically to show the influence of Rican factor k and fading severity ? on average level crossing rate and average fade duration.

A handoff management for Next Generation Wireless Systems

2010 ◽  
Author(s):  
Debabrata Sarddar ◽  
Joydeep Banerjee ◽  
Souvik Kumar Saha ◽  
M.K. Naskar ◽  
Tapas Jana ◽  
...  
Keyword(s):  
Wireless Systems ◽  
Next Generation ◽  
Handoff Management
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