May 2014
doc.: IEEE 802.11-14/0625r1
Multi-channel operation in
simulation scenarios
Date: 2014-05-12
Authors:
Name
Suhwook Kim
Wookbong Lee
Jeongki Kim
Giwon Park
Kiseon Ryu
HanGyu Cho
Submission
Affiliations
LG Electronics
LG Electronics
LG Electronics
LG Electronics
LG Electronics
LG Electronics
Address
19, Yangjea-daero
11gil, Seocho-gu,
Seoul 137-130, Korea
Slide 1
Phone
+82-2-6912-6589
Email
[email protected]
[email protected]
[email protected]
[email protected]
[email protected]
[email protected]
Suhwook Kim, LG Electronics
May 2014
doc.: IEEE 802.11-14/0625r1
Motivation
• In this contribution, we provide and revise description
on the channelization parameters such as center
frequency, channel bandwidth, and primary channels
for each simulation scenario in the current simulation
scenario document [1]
Submission
Slide 2
Suhwook Kim, LG Electronics
May 2014
doc.: IEEE 802.11-14/0625r1
Channelization parameters in SS document
• Center frequency and channel BW
– All BSSs either all at 2.4GHz, or all at 5GHz
– [20MHz BSS at 2.4GHz, or 80 MHz BSS at 5GHz] or {…}
• Primary channels
– Scenario 1: [Random assignment of 3 non overlapping channels ]
– Scenario 2: Ch1(BSS 1, 5), Ch2(BSS 2, 6), Ch3(BSS 3, 7),
Ch4(BSS 4, 8)
– Scenario 3: []
– Scenario 4: {Frequency reuse 1 is considered: all BSSs are using
the same 80MHz channel} and [Primary channel position TBD]
Submission
Slide 3
Suhwook Kim, LG Electronics
May 2014
doc.: IEEE 802.11-14/0625r1
Channelization parameters
• We propose to clarify how to select channels and set
primary channel in each scenario considering
–
–
–
–
–
–
–
Submission
2.4GHz and 5GHz
Channel selection (in managed or unmanaged network)
Channel bandwidth (e.g. 80MHz in 5GHz)
P2P interference
Regulation (e.g. DFS)
Frequency reuse (1 or 3)
Different operator in case of scenario 4 (outdoor)
Slide 4
Suhwook Kim, LG Electronics
May 2014
doc.: IEEE 802.11-14/0625r1
Scenario 1. Residential
• Channel selection of each BSS is done randomly since it
is an unmanaged network
• Common home AP will be available to select DFS
channels in residential environment
– As the baseline, we assume that DFS and non-DFS channels are
used
– moreover, to test dense environment we assume that three 80 MHz
channels are used
Submission
Slide 5
Suhwook Kim, LG Electronics
May 2014
doc.: IEEE 802.11-14/0625r1
Scenario 1. Residential
- Proposed change Freq.
Band
BW
Primary channel position
of each BSS
Note
5 GHz
Random selection in three 80
80 MHz
MHz channels
Each BSS randomly select
the primary channel position
in the 80 MHz channel
Baseline
(mandatory)
5 GHz
Random selection in one/five
80 MHz
80 MHz channels
Each BSS randomly select
the primary channel position
in the 80 MHz channel
Optional
2.4
GHz
Random selection in three 20
20 MHz MHz channels
N/A
(Non-overlapped)
Submission
Channel selection of each
BSS
Slide 6
Optional
Suhwook Kim, LG Electronics
May 2014
doc.: IEEE 802.11-14/0625r1
Scenario 2&3.
Enterprise & Indoor Small BSS Hotspot
• Coordinated channel selection are expected since it is a
managed network
• 5 GHz band usage will be preferred for a better
performance
• We assume that DFS and non-DFS channels can be
used
• P2P interference will be randomly operated in only
non-DFS channels
Submission
Slide 7
Suhwook Kim, LG Electronics
May 2014
doc.: IEEE 802.11-14/0625r1
Scenario 2. Enterprise
- Proposed change Freq.
Band
5 GHz
5 GHz
BW
Channel selection of each
BSS
80 MHz
Coordinated channel selection
Aligned
in Non-DFS and DFS channels
(Fig.1 is an example)
(See next slide)
80 MHz
Coordinated channel selection
in two Non-DFS channels
Primary channel
position of each BSS
Each BSS randomly
select the primary
channel position in the
80 MHz channel
Note
Baseline
(mandatory)
Optional
Figure 1
(Reference: IEEE 802.11ac-2013)
Submission
Slide 8
Suhwook Kim, LG Electronics
May 2014
doc.: IEEE 802.11-14/0625r1
Scenario 2. Enterprise
- Proposed change • Baseline for Scenario 2
– Channel 1: Non-DFS channel
– Channel 2, 3, 4: DFS channel
20 m
20 m
Submission
Ch. 1
Ch. 2
Ch. 1
Ch. 2
Ch. 1
Ch. 2
Ch. 1
Ch. 2
Ch. 3
Ch. 4
Ch. 3
Ch. 4
Ch. 3
Ch. 4
Ch. 3
Ch. 4
Ch. 1
Ch. 2
Ch. 1
Ch. 2
Ch. 1
Ch. 2
Ch. 1
Ch. 2
Ch. 3
Ch. 4
Ch. 3
Ch. 4
Ch. 3
Ch. 4
Ch. 3
Ch. 4
Slide 9
Suhwook Kim, LG Electronics
May 2014
doc.: IEEE 802.11-14/0625r1
Scenario 3. Indoor Small BSS Hotspot
- Proposed change Freq.
Band
5 GHz
5 GHz
BW
Channel selection of each BSS
Primary channel
position of each BSS
Note
80 MHz
Coordinated channel selection
in Non-DFS and DFS channels
(Frequency reuse 3.
See next slide)
Aligned
(Fig.1 is an example)
Baseline
(mandatory)
80 MHz
Each BSS randomly
All BSSs selects the same Nonselect the primary
DFS channel
Optional
channel position in the
(Frequency reuse 1)
80 MHz channel
Figure 1
(Reference: IEEE 802.11ac-2013)
Submission
Slide 10
Suhwook Kim, LG Electronics
May 2014
doc.: IEEE 802.11-14/0625r1
Scenario 3. Indoor Small BSS Hotspot
- Proposed change • Baseline for Scenario 3
…
– Channel 1: Non-DFS channel
– Channel 2, 3: DFS channel
10
…
11
12
3
4
13
Ch. 1
Ch. 1
2
5
…
8
Ch. 2
19
1
14
…
9
7
6
15
18
17
Ch. 3
…
…
16
Channelization in real world
Submission
Channelization in simulation world
Slide 11
Suhwook Kim, LG Electronics
May 2014
doc.: IEEE 802.11-14/0625r1
P2P network in Scenario 2&3
- Proposed change Freq.
Band
5 GHz
BW
Channel selection of each
BSS
80 MHz
Each P2P group randomly
Non-DFS channel in slide 9 select the primary channel
and 11
position in the 80 MHz
channel
Submission
Primary channel position
of each BSS
Slide 12
Note
Baseline
(mandatory)
Suhwook Kim, LG Electronics
May 2014
doc.: IEEE 802.11-14/0625r1
Scenario 4. Outdoor Large BSS Hotspot
• 5GHz band usage will be preferred for a better
performance
• Frequency reuse is 1
– We assume that there is one available 80 MHz channel for outdoor
in 5 GHz band due to transmit power regulation (U-NII-3)
• The case that there exist different operators may be
considered
Submission
Slide 13
Suhwook Kim, LG Electronics
May 2014
doc.: IEEE 802.11-14/0625r1
Scenario 4. Outdoor Large BSS Hotspot
- Proposed change
Freq.
BW
Band
Channel selection of each
BSS
Primary channel position
of each BSS
Note
5
GHz
80 MHz
There is one operator using
one channel for all BSSs
Aligned
(Fig.1 is an example)
Baseline
(mandatory)
80 MHz
There are three operators
using the same one channel
for all BSSs
Aligned
(Fig.1 is an example)
Optional
5
GHz
Figure 1
(Reference: IEEE 802.11ac-2013)
Submission
Slide 14
Suhwook Kim, LG Electronics
May 2014
doc.: IEEE 802.11-14/0625r1
Conclusion
• We provided mandatory (baseline) and optional
channelization methods per each simulation scenario
• Mandatory channelization is proposed as follows:
Scenario
Center Freq. & BW
Residential
Enterprise
Indoor Small
BSS Hotspot
Outdoor
Large BSS
Hotspot
Submission
All BSSs use 80
MHz at 5 GHz
Channel selection of each BSS
Primary CH
Random selection in three 80
MHz channels
Random
Coordinated channel selection in
Non-DFS and DFS channels
Aligned
There is one operator using one
channel for all BSSs
Slide 15
Suhwook Kim, LG Electronics
May 2014
doc.: IEEE 802.11-14/0625r1
Reference
• [1] 11-13-1001-07-0hew-simulation-scenariosdocument-template
Submission
Slide 16
Suhwook Kim, LG Electronics
May 2014
doc.: IEEE 802.11-14/0625r1
Appendix
• Regulation for 5 GHz in US
– FCC 14-30 ET Docket No. 13-49: Revision of Part 15 of the
Commission’s Rules to Permit Unlicensed National Information
Infrastructure (U-NII) Devices in the 5 GHz Band
Submission
Slide 17
Suhwook Kim, LG Electronics