TY - GEN
T1 - A novel decentralized time slot allocation algorithm in dynamic TDD system
AU - Choi, Young Sil
AU - Sohn, Illsoo
AU - Lee, Kwang Bok
PY - 2006
Y1 - 2006
N2 - This paper proposes the decentralized time slot allocation (DTSA) algorithm in dynamic TDD (D-TDD) system to support traffic asymmetry. In D-TDD systems, additional interferences are introduced when one cell is uplink (downlink) and the other cell is downlink (uplink). These kinds of interferences result in severe performance degradation of SIR, which occurs especially to users in cell edge than users in cell center. To reduce additional interferences, DTSA algorithm is applied to D-TDD system. This algorithm assumes decentralized cellular network, so, it operates independently in each cell and has lower complexity than the other systems. Using DTSA algorithm, the outage probability of uplink and downlink at 0dB are decreased about 4.3% and 8.5% compared to conventional D-TDD system, respectively. Also DTSA algorithm increases the system capacity compared to S-TDD system and conventional D-TDD system. Simulation results show that D-TDD system with DTSA algorithm can support more asymmetric traffic than other systems, which increase system capacity.
AB - This paper proposes the decentralized time slot allocation (DTSA) algorithm in dynamic TDD (D-TDD) system to support traffic asymmetry. In D-TDD systems, additional interferences are introduced when one cell is uplink (downlink) and the other cell is downlink (uplink). These kinds of interferences result in severe performance degradation of SIR, which occurs especially to users in cell edge than users in cell center. To reduce additional interferences, DTSA algorithm is applied to D-TDD system. This algorithm assumes decentralized cellular network, so, it operates independently in each cell and has lower complexity than the other systems. Using DTSA algorithm, the outage probability of uplink and downlink at 0dB are decreased about 4.3% and 8.5% compared to conventional D-TDD system, respectively. Also DTSA algorithm increases the system capacity compared to S-TDD system and conventional D-TDD system. Simulation results show that D-TDD system with DTSA algorithm can support more asymmetric traffic than other systems, which increase system capacity.
UR - http://www.scopus.com/inward/record.url?scp=33749068662&partnerID=8YFLogxK
U2 - 10.1109/CCNC.2006.1593242
DO - 10.1109/CCNC.2006.1593242
M3 - Conference contribution
AN - SCOPUS:33749068662
SN - 1424400856
SN - 9781424400850
T3 - 2006 3rd IEEE Consumer Communications and Networking Conference, CCNC 2006
SP - 1268
EP - 1272
BT - 2006 3rd IEEE Consumer Communications and Networking Conference, CCNC 2006
T2 - 2006 3rd IEEE Consumer Communications and Networking Conference, CCNC 2006
Y2 - 8 January 2006 through 10 January 2006
ER -