Radio Channel Model
10
Group 896 GPRS Radio Resource Management Radio Channel Model • Path Loss • Slow Fading • Fast Fading
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Radio Channel Model. Path Loss Slow Fading Fast Fading. C/I Generation. 1. Mean C/I --- Path Loss and Reuse Pattern. Path Loss. PDF(r). pdf(r)=k*r, 15m
Transcript of Radio Channel Model
Group 896GPRS Radio Resource
Management
Radio Channel Model
•Path Loss
•Slow Fading
•Fast Fading
Group 896GPRS Radio Resource
Management
C/I Generation1. Mean C/I --- Path Loss and Reuse Pattern
Path Loss PDF(r)
pdf(r)=k*r, 15m<r<500m
Group 896GPRS Radio Resource
Management
0: Investigated Cell
1~6: Co-channel Cell
D: Reuse Distance
R: Cell Radius
r: MS-BTS Distance12
3
4 5
60
D
R
r
Reuse Pattern C/I Calculation
Group 896GPRS Radio Resource
Management
PDF Mean C/I
Group 896GPRS Radio Resource
Management
2. C/I per MS --- Shadowing Effect
Lognormal Distribution
C/I for Each Mobile
Group 896GPRS Radio Resource
Management
Time Correlation Function
Group 896GPRS Radio Resource
Management
Frequency Correlation Function
Group 896GPRS Radio Resource
Management
Coding Scheme Selection
CIR 0~5 CS1CIR 6~9 CS2CIR 10~16 CS3CIR 16~30+ CS4
Group 896GPRS Radio Resource
Management
BLER Generation
Random Seed< BLER Block Correct
C/I
CS_x
RandomSeed
Random Seed> BLER Block Erroneous
BLER Generation
C/I
BLER
Mapping Function
Group 896GPRS Radio Resource
Management
Path Loss
Shadowing Effect
MS ID
pdf(r)
Mean CIR
CIR per MS
CS_x Selection
BLER Mapping
RandomSeed
Block CorrectOr Erroneous
Distance Generation
