scholarly journals LCR of SC receiver output signal over α-κ-μ multipath fading channels

2016 ◽  
Vol 29 (2) ◽  
pp. 261-268 ◽  
Author(s):  
Suad Suljovic ◽  
Dejan Milic ◽  
Stefan Panic
Keyword(s):  
Fading Channels ◽  
Output Signal ◽  
Multipath Fading ◽  
Selection Combining ◽  
Multipath Fading Channels ◽  
Signal Envelope ◽  
Transmission Parameters ◽  
Dominant Component ◽  
Level Crossing Rate ◽  
Wireless Mobile Communication

Wireless mobile communication system with selection combining (SC) diversity receiver is investigated in this paper. Received signal envelope experiences ?-?-? short term fading resulting in system performance degradation. Level crossing rate (LCR) and average fade duration (AFD) of SC receiver output signal envelope are obtained as rapidly converging infinite series expressions. Numerically evaluated results are presented graphically, in order to discuss the effects of transmission parameters: multipath fading severity, dominant component power and nonlinearity propagation parameter on observed LCR performance of dual SC.

New Results and Applications about the Level Crossing Rate of SC Receiver output Signal in the Presence of Gamma Shadowing and k-μ or Rician Multipath Fading

2021 ◽  
Vol 20 ◽  
pp. 118-127
Author(s):  
DRAGANA KRSTIĆ ◽  
SUAD SULJOVIĆ ◽  
MIHAJLO STEFANOVIĆ ◽  
MUNEER MASADEH BANI YASSEIN ◽  
DANIJELA ALEKSIĆ
Keyword(s):  
Output Signal ◽  
Joint Probability ◽  
Multipath Fading ◽  
Average Level ◽  
Rician Fading ◽  
Level Crossing ◽  
Multipath Fading Channel ◽  
Signal Envelope ◽  
Level Crossing Rate ◽  
Severity Parameter

In this paper,the wireless communication system with dual SC receiver operating over shadowed multipath fading channel is considered. The multipath fadingis k-μor Rician.The received signal experiences the short term fading which is resulting in SC receiver envelope variation and Gamma long term fading resulting in SC receiver envelope power variation. The closed form expressions for joint probability density functions of SC receiver output signal envelope and their first derivative of SC receiver output signal envelope are calculated for both, k-μand Rician fading. These expressions are used for evaluation of average level crossing rate of SC receiver output signal envelopes. The numerical expressions are plotted to show the effect of Rician fading severity parameter and Gamma shadowing severity parameter on the average level crossing rate of SC receiver output signal envelope.

scholarly journals Moments Of Microdiversity EGC Receivers And Macrodiversity SC Receiver Output Signal Over Gamma Shadowed Nakagami–m Multipath Fading Channel

2015 ◽  
Vol 66 (6) ◽  
pp. 348-351
Author(s):  
Nebojša Djordjević ◽  
Branimir S. Jaksić ◽  
Ana Matović ◽  
Marija Matović ◽  
Marko Smilić
Keyword(s):  
Closed Form ◽  
Output Signal ◽  
Fading Channel ◽  
Multipath Fading ◽  
Selection Combining ◽  
Signal Power ◽  
Equal Gain Combining ◽  
Multipath Fading Channel ◽  
Signal Envelope ◽  
System Output

Abstract A system with macrodiversity selection combining (SC) receiver and for microdiversity equal gain combining (EGC) receivers is considered. Received signal is subjected, simultaneously to multipath fading and shadowing, resulting in signal envelope and signal power variation. Closed form expressions for moments of macrodiversity SC receiver output signal envelope are calculated. Numerical expressions are plotted to present the influences of Gamma shadowing severity and Nakagami-m severity on moments of proposed system output signal.

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