1. Joint submission for Box 5 calibration
May 2015
Joint submission for
Box 5 calibration
Date:
Authors:
Suhwook Kim, LG Electronics

2. May 2015
Suhwook Kim, LG Electronics

3. Month Year
doc.: IEEE yy/xxxxr0
May 2015
Abstract
This joint submission provides updated simulation results for Box-5 calibration of each members
However, the results are not matched yet
To speed up the Box-5 calibration, we agreed some detail implementations
Suhwook Kim, LG Electronics
John Doe, Some Company

4. Box-5 Calibration [1] Box 0, 1, and 2 calibration are almost done
May 2015
Box-5 Calibration [1]
Box 0, 1, and 2 calibration are almost done
Box 3 calibration is now in progress
Box 5 calibration was initially discussed in September meeting
Box 5: Integrated system simulator calibration
The objective is to align a combination of all PHY and MAC features
Suhwook Kim, LG Electronics

5. Box-5 PHY Details [2] May 2015 PHY parametersBW
All BSSs at 5GHz [80 MHz, no dynamic bandwidth]
Channel model
TGac D NLOS per link
Shadow fading
iid log-normal shadowing (5 dB standard deviation) per link
Data Preamble Type
[5GHz, 11ac], always decoded correctly after successful reception, duration is considered.
STA TX Power
15 dBm per antenna 
AP TX Power
20 dBm  per antenna
AP number of TX/RX antennas
1/1
STA number of TX /RX antennas
AP antenna gain
0 dBi
STA antenna gain
-2 dBi
Noise Figure
7dB
CCA threshold
-56 dBm (measured across the entire bandwidth after large-scale fading)
Rx sensitivity
-76 dBm (a packet with lower rx power is dropped)
Link Adaption
Fixed MCS =5 (234.0 Mbps)
Channel estimation
ideal
PHY abstraction
RBIR, BCC [1, 5]
Channel correlation
Independent or time-correlated channel per packet
Suhwook Kim, LG Electronics

6. Box-5 MAC Details [2] May 2015 MAC parameters
Access protocol
[EDCA, AC_BE with default parameters] [CWmin = 15, CWmax = 1023, AIFSn=3 ]
Queue length
A single queue for each traffic link is set inside AP/STA sized of 2000 packets
Traffic type
UDP CBR with rate 10^8bps (may not enough to model full buffer)
MPDU size
1540 Bytes (1472 Data + 28 IP header + 40 MAC header)
Aggregation
[A-MPDU / max aggregation size / BA window size, No A-MSDU, with immediate BA], Max aggregation: 64 MPDUs with 4-byte MPDU delimiter
Max number of retries 10
Beacon
Disabled
RTS/CTS
OFF
Traffic direction
UL Only
Output metric
-CDF or Histogram of per non-AP STA throughput (received bits/overall simulation time)
-PER of all AP/STA (1 - # of success subframes / # of transmitted subframes)
Suhwook Kim, LG Electronics

7. 11ac Scenario 6 – OBSS Enterprise [2][3]
May 2015
11ac Scenario 6 – OBSS Enterprise [2][3]
Fixed Location and Association
STA1
(5,-9.5)
STA2
(3.5,7.5)
STA4
(-4.5,0.5)
STA5
(-1.5,6)
STA7
(-9,-5)
STA8
(-8.5,8.5)
STA10
(-3,0.5)
STA11
(-0.5,8)
STA13
(-4,-4)
STA14
(7.5,-1)
STA16
(8,-6)
STA17
(0,-7.5)
STA19
(-2.5,-4.5)
STA20
(0.5,-2)
STA22
(0,-4.5)
STA23
(-1.5,7)
STA25
(3.5,-5)
STA26
(9,9.5)
STA28
(-8,-5.5)
STA29
(1.5,3.5)
AP A
(0,0)
AP B
(40,20)
AP C
(-40,-20)
STA3
(7.5+xb, ‑9.5+yb)
STA9
(7+xb, -7.5+yb)
STA15
(3+xb, -0.5+yb)
STA21
(-6.5+xb, -3+yb)
STA27
(‑6+xb, 2.5+yb)
STA6
(-5.5+xc,4.5+yc)
STA12
(7+xc,7+yc)
STA18
(10+xc,0.5+yc)
STA24
(3+xc,2.5+yc)
STA30
(9.5+xc,3.5+yc)
Suhwook Kim, LG Electronics

8. History on Box-5 Calibration
May 2015
History on Box-5 Calibration
We have discussed Box-5 calibration from September meeting
Many issues have been agreed and addressed in DCN 1523r5
Simulator members agreed that we have to focus on 1 BSS UL case in March meeting (BSS B)
Suhwook Kim, LG Electronics

9. Focusing case No shadowing Fixed MCS = 5 instead of 7 currently used
May 2015
Focusing case
No shadowing
Fixed MCS = 5 instead of 7 currently used
Firstly calibrate 3 combinations of 2-STA case (3+9, 3+27, 3+15)
Then we turn to 3-STA case (3+9+27, )
Suhwook Kim, LG Electronics

10. One BSS Test Result Each STA Throughput [Mbps] May 2015 LG [5] ZTE [6]
MediaTek
[7]
WILUS
NEWRACOM [8]
Huawei
NTT
2 STAs
STA 3,
STA 9
98.25
98.13
98.27
98.00
98.16
100.92
95.84
97.28
STA 27
91.02
94.19
96.73
93.46
97.77
95.10
95.53
STA 15
98.36
98.95
98.10
98.38
98.48
101.22
95.77
97.23
3 STAs
STA 9,
65.66
65.49
55.61
66.87
60.30
71.59
83.67
88.47
21.23
67.07
65.46
52.25
60.16
62.89
66.01
67.33
65.75
72.23
62.68
60.10
72.15
59.89
58.95
65.52
Suhwook Kim, LG Electronics

11. One BSS Test Result Sum Throughput [Mbps] May 2015 LG [5] ZTE [6]
MediaTek
[7]
WILUS
NEWRACOM [8]
Huawei
NTT
2 STAs
STA 3,
STA 9
196.38
196.27
199.08
196.32
193.12
196.96
196.31
STA 27
185.21
194.86
191.23
194.59
190.63
196.7
STA 15
197.31
196.48
199.7
195.47
193
197.1
196.67
3 STAs
STA 9,
186.76
198.76
193.37
192.28
184.78
187.81
185.52
189.06
205.31
194.93
190.46
184.36
189.27
186.17
Suhwook Kim, LG Electronics

12. Agreement during off-line discussion
May 2015
Agreement during off-line discussion
Each members make sure own simulator about following issues and specify among this group
Power Spectral density (scale to 80 MHz)
Preamble decoding procedure (EMD 571r8)[9]
Capture window size, preemption window size, etc..
Each single link performance (STA-AP 1-to-1)
A-MPDU aggregation algorithm
Suhwook Kim, LG Electronics

13. Agreement during off-line discussion
May 2015
Agreement during off-line discussion
Running time: at least 10 seconds per 1 drop
No capture effect: Receiver is locked during PPDU length
UDP traffic starts during ~ seconds
Additional performance metrics may be used
PER
1 - # of success subframes / # of transmitted subframes
Average number of aggregated subframe
# of transmitted subframes / # of transmitted PPDU
Suhwook Kim, LG Electronics

14. May 2015
Conclusion
This joint submission provided simulation results for Box-5 calibration of each members
We focused 1 BSS UL case
However, the results are not matched yet
To speed up the Box-5 calibration, we agreed some detail implementations
Text for Simulation Scenario Document (980r10) will be presented
Suhwook Kim, LG Electronics

15. Reference [1] 11-14/0571r5 Evaluation Methodology
May 2015
Reference
[1] 11-14/0571r5 Evaluation Methodology
[2] 11-14/1177r2 Box5 Calibration Discussion
[3] 11-09/0451r16 TGac Functional Requirements and Evaluation Methodology
[4] 11-14/1523r5 Offline Discussion Minutes of SLS Calibration
[5] 11-14/1392r7 Simulation Results for Box5 calibration
[6] 11-15/0638r0 Simulation Results for Box5
[7] 11-15/0613r0 Box 5 Calibration Result
[8] 11-15/0610r1 Simulation Results for Box 5 Calibration
[9] 11-14/0571r8 Evaluation Methodology
Suhwook Kim, LG Electronics