Microsoft Powerpoint Indoor Propagation Model 3xz1y

Indoor propagation model Reflection, diffraction and shadowing due to wall, ceiling, floor, and furniture. Three primes factors influencing the propagation - Radio operating environment - Room Configuration - Zone configuration Radio Propagation environment large factory large office department store station, airport Business area

event hall shopping mall supermarket small factory small office small shop House in urban and suburban

Residentia l area

House in rural Apartment house

Room Configuration 1. 2. 3. 4. 5.

Large room without partition: density of obstacles: low Large room with soft partition; density of obstacles: low-middle Large room without partition: density of obstacles: heavy Small room: density of obstacles: low Small room: density of obstacles: high

Zone configuration 1. Extra-large-zone system; the BS is located outside the building, and it covers several buildings. 2. Large-zone system; one BS is installed inside a building, it covers the whole building. 3. Middle-zone systems; one BS covers several rooms; usually there are several BSs inside the building . 4. Small-zone system; several BSs cover one room. 5. Micro-zone system; several BSs cover one room. 6. Self-organized distributed system; the same system as the existing cordless telephone.

Environment, room configuration and zone configuration Radio operating environments

Room configuration 1

2

3

●

●

●

●

department store

●

●

station, airport

●

large factory large office

event hall Business area shopping mall supermarket

●

●

●

●

●

4

●

5

1

2

●

3

4

5

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

small factory

Residential area

Zone configuration

●

●

●

6

●

small office

●

●

●

●

●

small shop

●

●

●

●

●

Urban/suburban house

●

●

●

hour in rural area

●

●

apartment house

●

●

● ● ●

●

●

BS

●

●

(3)

(1) (2)

●

●

● (4)

●

●

●

● (5

Extra-large zone system α

 r  1  r  L p (r ) = L r (r0 )  L B (r0 )  AF  r0   r0  L r (r0 ) -Path loss attenuation due to propagation at a distance r = r0 L B (r0 ) - Attenuation due to building at r = r0

α 2 - Building attenuation factor α1

- Attenuation factor of propagation path loss with respect to distance

AF - Building penetration loss

Large zone system α

 r  p L p (r ) = L r (r0 )   r0  L r (r0 ) -Path loss attenuation due to propagation at a distance r = r0 α p =2-3 when the transmitter and receiver located on the same floor >3 when transmitter and receiver are located at different floor (2-6, 2-7, 2-80

Middle zone system 2

 4πf c r  L p (r ) =   F (r ) k1W (r ) k 2 R(r )  c 

c

-velocity of light

f c - Carrier frequency F (r ) - Floor attenuation

W (r ) - Wall attenuation

R(r ) - Reflection loss k1 - Number of floors traversed k 2 - Number of walls traversed

As a radio and network engineer provide the room and zone Configuration for the following the following indoor environment.

Radio operating environments

Room configuration 1

Hotel A enger Ship

2

3

4

Zone configuration 5

1

2

3

4

5

6