100 likes | 193 Views
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<r<500m. Reuse Pattern. C/I Calculation. 0: Investigated Cell 1~6: Co-channel Cell D: Reuse Distance R: Cell Radius
E N D
Radio Channel Model • Path Loss • Slow Fading • Fast Fading Group 896 GPRS Radio Resource Management
C/I Generation 1. Mean C/I --- Path Loss and Reuse Pattern Path Loss PDF(r) pdf(r)=k*r, 15m<r<500m Group 896 GPRS Radio Resource Management
Reuse Pattern C/I Calculation 0: Investigated Cell 1~6: Co-channel Cell D: Reuse Distance R: Cell Radius r: MS-BTS Distance 4 5 R 0 3 6 r D 2 1 Group 896 GPRS Radio Resource Management
PDF Mean C/I Group 896 GPRS Radio Resource Management
2. C/I per MS --- Shadowing Effect Lognormal Distribution C/I for Each Mobile Group 896 GPRS Radio Resource Management
Time Correlation Function Group 896 GPRS Radio Resource Management
Frequency Correlation Function Group 896 GPRS Radio Resource Management
Coding Scheme Selection • CIR 0~5 CS1 • CIR 6~9 CS2 • CIR 10~16 CS3 • CIR 16~30+ CS4 Group 896 GPRS Radio Resource Management
CS_x C/I BLER Generation Random Seed> BLER Block Erroneous Random Seed Mapping Function BLER Generation BLER C/I Block Correct Random Seed< BLER Group 896 GPRS Radio Resource Management
MS ID Distance Generation Random Seed pdf(r) Path Loss Mean CIR Block Correct Or Erroneous Shadowing Effect CIR per MS BLER Mapping CS_x Selection Group 896 GPRS Radio Resource Management