Boston5G RIS Scenario

Boston5G RIS scenario

An outdoor scenario constructed based on a section of downtown Boston
1 base station, 1 RIS, and a million candidate users are available for RIS applications!
The RIS can be used to relay the base station with the NLoS users in User Grid 2
Dataset is available at operating frequency 3.5 GHz and 28GHz
Cross-polarized antennas are available with the 3.5 GHz operating frequency

Note: This scenario is based on the Boston 5G model developed by Remcom

Key components

Base stations

One base station (BS1) is available. The height of the BS1 is 15 m
Each antenna array element at the BS is an isotropic antenna
Cross-polarized antenna elements are available with the 3.5 GHz operating frequency

RIS

One RIS is available to enable RIS applications! E.g., the RIS can be used to relay the BS with the NLoS users in the right half (UG2)
The height of the RIS is 15 m
Both the BS-to-RIS and RIS-to-user channels are available!
The RIS is indexed as “BS2” in DeepMIMO to generate the BS-to-RIS and RIS-to user channels
The RIS can be also used as a BS

Users

Two uniform x-y user grids (UGs): UG1 and UG2.
Total number of users = 965,090 users
The first user in every user grid is always the user with the lowest (x,y) coordinate
The height of all user grids is 2 m
Each antenna array element at each user is an isotropic antenna
First user grid (UG1)
- Distributed on the left half of the scenario (Fig. 1) with a length of 220 m and width of 300 m
- Accessed from Row 1 to Row 811 (811 rows in total)
- 595 users per row (595 users with the same y coordinate)
- 37 cm spacing between adjacent users
- Number of users in UG1 = 482,545 users
Second user grid (UG2)
- Distributed on the right half of the scenario (Fig. 1) with a length of 220 m and width of 300 m
- Accessed from Row 812 to Row 1622 (811 rows in total)
- 595 users per row (595 users with the same y coordinate)
- 37 cm spacing between adjacent users
- Number of users in UG2 = 482,545 users

Site plan

The site is constructed based on a section of downtown Boston. The BS is placed in the vertical street in the middle, the RIS is placed in the right half of the scenario
The ITU concrete and ITU wet earth are adopted as materials for the buildings and the terrain respectively
The ray-tracing angle spacing is 0.25° (degree)
As for the propagation model, each channel path can undergo a maximum of 4 reflections before reaching the receiver

Cross-polarized antenna

Cross-polarized antennas are available in a scenario with 3.5 GHz carrier frequency
Antennas at the BS1 and the user have the horizontal (H) and vertical (V) elements
The channels between the two cross-polarized antennas (H-H, H-V, V-H, V-V) are all available
Note: RIS (“BS2”) is not available in the scenario with cross-polarized antennas

Note

The maximum number of reflections along each propagation path is set to 4 in the ray tracing simulation.
Under this configuration, some users in the scenario do not have any propagation path with the base stations.