TY - GEN
T1 - A highly efficient radio reuse scheme using tilted directional-beam antennas in urban microcellular systems
AU - Cho, Ho Shin
AU - Im, Duck Bin
AU - Sung, Dan Keun
PY - 1999
Y1 - 1999
N2 - A new microcell configuration scheme in urban areas is proposed in order to increase the reuse efficiency of radio resources. Multiple directional-beam antennas lined up a-long a street form a cigar-shaped cell. Antennas are located at intersection and are directed along the intersecting streets. Two antennas facing each other form a microzone and, therefore, a cigar-shaped cell consists of multiple microzones in a line. Each microzone is protected against co-channel interference from neighboring microzones by confinement of transmitted signals to a microzone using down-tilting of antenna beams. Therefore, a radio channel which is occupied in one microzone can be used in adjacent microzones. An increase in system capacity is achieved by the high reuse efficiency of radio resources. The proposed system increases system capacity by 560% with a call blocking probability of 1% when compared with a conventional system.
AB - A new microcell configuration scheme in urban areas is proposed in order to increase the reuse efficiency of radio resources. Multiple directional-beam antennas lined up a-long a street form a cigar-shaped cell. Antennas are located at intersection and are directed along the intersecting streets. Two antennas facing each other form a microzone and, therefore, a cigar-shaped cell consists of multiple microzones in a line. Each microzone is protected against co-channel interference from neighboring microzones by confinement of transmitted signals to a microzone using down-tilting of antenna beams. Therefore, a radio channel which is occupied in one microzone can be used in adjacent microzones. An increase in system capacity is achieved by the high reuse efficiency of radio resources. The proposed system increases system capacity by 560% with a call blocking probability of 1% when compared with a conventional system.
UR - http://www.scopus.com/inward/record.url?scp=79952173849&partnerID=8YFLogxK
U2 - 10.1109/VETECF.1999.801484
DO - 10.1109/VETECF.1999.801484
M3 - Conference contribution
AN - SCOPUS:79952173849
SN - 0780354354
SN - 9780780354357
T3 - IEEE Vehicular Technology Conference
SP - 1356
EP - 1360
BT - IEEE VTS 50th Vehicular Technology Conference, VTC 1999-Fall
T2 - IEEE VTS 50th Vehicular Technology Conference, VTC 1999-Fall
Y2 - 19 September 1999 through 22 September 1999
ER -