1. Sept. 2015
Project: IEEE P Working Group for Wireless Personal Area Networks (WPANs)
Submission Title: Simulation Results for an NAV Setting Mechanism for RTS/CTS Handshaking
Date Submitted: July ,2015
Source: [Nah-Oak Song]1, [Byung-Jae Kwak]2, [Junhyuk Kim]1
Company [KAIST]1, [ETRI]2
Address [291 Daehak-ro, Yuseong-gu, Daejeon, Korea]1,
[218 Gajeong-ro, Yuseong-gu, Daejeon, Korea]2
Re: P Draft D0.14.0
Abstract: Presents the simulation results for new NAV setting mechanism for RTS/CTS handshaking mechanism that improves efficiency by minimizing exposed node problem.
Purpose: Discussion
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
Nah-Oak Song et al., KAIST

2. Sept. 2015
Simulation Results for an NAV Setting Mechanism for RTS/CTS Handshaking
September 2015
Nah-Oak Song et al., KAIST

3. Original RTS/CTS Handshaking
Sept. 2015
Original RTS/CTS Handshaking
NAV Setting Mechanism
Nah-Oak Song et al., KAIST

4. Proposed RTS/CTS Handshaking (1/2)
Sept. 2015
Proposed RTS/CTS Handshaking (1/2)
NAV Setting Mechanism
Nah-Oak Song et al., KAIST

5. Proposed RTS/CTS Handshaking (2/2)
Sept. 2015
Proposed RTS/CTS Handshaking (2/2)
Original RTS/CTS handshaking
Removes hidden nodes
Instead, creates more exposed nodes
Thus, results in inefficient use of valuable resource
Proposed RTS/CTS handshaking
Minimizes exposed nodes created by the original RTS/CTS handshaking
By smart NAV setting mechanism
Nah-Oak Song et al., KAIST

6. Simulation Results (1/5)
Sept. 2015
Simulation Results (1/5)
Comments from previous meeting in Hawaii:
“The effectiveness needs to be verified by simulation.”
Nah-Oak Song et al., KAIST

7. Simulation Results (2/5)
Sept. 2015
Simulation Results (2/5)
Simulation scenario/parameters
Clustered random drop & uniform random drop
#PDs: 50, 100, 200, 500, 1000
500m x 500m area
Performance criteria: areal throughput
Packet size 1500 bytes
Data rate: 6 Mbps
Nah-Oak Song et al., KAIST

8. Simulation Results (3/5)
Sept. 2015
Simulation Results (3/5)
Clustered random drop
Clustered Random drop
100
PDs
Nah-Oak Song et al., KAIST

9. Simulation Results (4/5)
Sept. 2015
Simulation Results (4/5)
Uniform random drop
Uniform Random drop
100
PDs
Nah-Oak Song et al., KAIST

10. Simulation Results (5/5)
Sept. 2015
Simulation Results (5/5)
Areal throughput
Clustered Random drop, 1500B
Uniform Random drop, 1500B
Nah-Oak Song et al., KAIST

11. Conclusion Exposed node problem more severe when PD density is high
Sept. 2015
Conclusion
Exposed node problem more severe when PD density is high
Simulation results show the effectiveness of the proposed RTS/CTS handshaking scheme
The proposed RTS/CTS handshaking significantly improves the areal throughput with no additional complexity
Nah-Oak Song et al., KAIST