Project: IEEE P Working Group for Wireless Personal Area Networks (WPANs)

Transcription

1 Project: IEEE P Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [VLC Channel Modeling Simulation for Metropolitan Scenario] Date Submitted: [14 May, 2010] Source: [(1)Sung-Yoon Jung and (2)Younghoon Kwon (3)Jae Kyun Kwon (4)Hyun-Dong Moon (5)Chang- Ho Lee] Company [LED-IT Fusion Technology Research Center (LIFTRC), Yeungnam University] Address [300 Sampung-dong, Gyeongsan-si, Gyeongsangbuk-do, Republic of Korea, ] Voice:[(1) (2) (3) ], Re: [] Abstract: [Results of channel modeling simulation are presented. The impulse response of the LED lighting channel is simulated regarding the Automotive Head Lamp & Street Light Regulation in Metropolitan Scenario.] Purpose: [Comments to IEEE VLC TG] Notice: This document has been prepared to assist the IEEE P It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein. Release: The contributor acknowledges and accepts that this contribution becomes the property of IEEE and may be made publicly available by P Submission Slide 1

2 VLC Channel Modeling Simulation for Metropolitan Scenario LED-IT Fusion Technology Research Center (LIFTRC), Yeungnam University Submission Slide 2

3 Channel Model for Metropolitan Scenario Automotive VLC for Metropolitan Scenario Main Operation Field (Hot Spot) for Automotive VLC Application Lots of vehicles rather than other automotive application scenarios Harsh multipath environment, too many interferers All the light sources for automotive VLC (Head Lamp, Street Lamp, etc.) is restricted by regulation Our Purpose Provide some insight of deciding channel type for automotive applications in metropolitan scenario Include real street lamp modeling Consider additional regulation distribution for street lamp Submission Slide 3

4 Channel Modeling Simulation Results Submission Slide 4

5 Street Lamp modeling Reference LED street lamp : LEDin-ST K total system power: 136 W total luminous flux: 9300 lm Street Lamp modeling Submission Slide 5

6 Channel Modeling Scenario Scenes are based on Metropolitan (Scale 1:1) 5 Vehicle-to-Vehicle cases 3 Street Lamp-to-Vehicle cases Building Street Lamp Field road Metropolitan modeling(rendering image) Vehicle Submission Slide 6

7 Modeling process (Vehicle-to-Vehicle) Set reference vehicle Set target vehicles in the range of FOV of reference vehicle Target vehicles Reference vehicle <Simulation result> Operate optic simulation (use backward trace scheme) Extract direct/indirect ray paths Change reference vehicle & repeat simulations Submission Slide 7

8 Modeling process (Street Lamp-to-Vehicle) Set reference street lamp By considering lamp divergence, set about 3~4 target vehicles under the reference street lamp Target vehicles Reference Street Lamp <Simulation result> Operate optic simulation (use backward trace scheme) Extract direct/indirect ray paths Change reference/target vehicle & repeat simulations Submission Slide 8

9 Channel Modeling Simulation Results Vehicle-to-Vehicle Communication Link Total 9 sub-cases Channel normalization for each cases Remove propagation delay time 1 Case 1 amplitude Case1 A Case1 B Case1 C Case1 D Case1 E Case1 F Case1 G Case1 H Case1 I < Case 1 > time (sec) x 10-7 Submission Slide 9

10 Channel Modeling Simulation Results Vehicle-to-Vehicle Communication Link Total 7 sub-cases Channel normalization for each cases Remove propagation delay time 1 Case 2 amplitude Case2 A Case2 B Case2 C Case2 D Case2 E Case2 F Case2 G 0.2 < Case 2 > time (sec) x 10-8 Submission Slide 10

11 Channel Modeling Simulation Results Vehicle-to-Vehicle Communication Link Total 7 sub-cases Channel normalization for each cases Remove propagation delay time 1 Case 3 amplitude Case3 A Case3 B Case3 C Case3 D Case3 E Case3 F Case3 G < Case 3 > time (sec) Submission Slide 11 x 10-8

12 Channel Modeling Simulation Results Vehicle-to-Vehicle Communication Link Total 5 sub-cases Channel normalization for each cases Remove propagation delay time Case 4 1 amplitude Case5 A Case5 B Case5 C Case5 D Case5 E < Case 4 > time (sec) x 10-7 Submission Slide 12

13 Channel Modeling Simulation Results Street Lamp-to-Vehicle Communication Link Total 4 sub-cases Channel normalization for each cases Remove propagation delay time Case1 A Case1 B Case1 C Case1 D 0.5 amplitude < Case 1 > time (sec) x 10-7 Submission Slide 13

14 Channel Modeling Simulation Results Street Lamp-to-Vehicle Communication Link Total 4 sub-cases Channel normalization for each cases Remove propagation delay time Case2 A Case2 B Case2 C Case2 D amplitude < Case 2 > time (sec) x 10-7 Submission Slide 14

15 Channel Modeling Simulation Results Street Lamp-to-Vehicle Communication Link Total 4 sub-cases Channel normalization for each cases Remove propagation delay time Case3 A Case3 B Case3 C 0.7 amplitude < Case 3 > time (sec) x 10-7 Submission Slide 15

16 Conclusions V-to-V Communication Link Multiple LOS multipath components with short delay spread SL-to-V Communication Link Multiple LOS multipath components with long delay spread V-to-V & SL-to-V Can be modeled as Mixed Channel Model Submission Slide 16