QoS-Guaranteed Cross-Layer Adaptive Transmission Algorithms with Selective ARQ for the IEEE 802.16 OFDMA System

We consider the IEEE 802.16 OFDMA system with the frequency diversity frame structure. We perform adaptive coding and modulation, allocation of the time-frequency resource and transmit power to the downlink and uplink service flows, scheduled for transmission in the current frame. We also adapt the...

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Vydané v:IEEE Vehicular Technology Conference s. 1 - 5
Hlavní autori: Filin, S.A., Moiseev, S.N., Kondakov, M.S., Garmonov, A.V., Savinkov, A.Y., Yun Sang Park, Do Hyon Yim, Jae Ho Lee, Seok Ho Cheon, Ki Tae Han
Médium: Konferenčný príspevok..
Jazyk:English
Vydavateľské údaje: IEEE 01.09.2006
Predmet:
Adaptive coding
Automatic repeat request
Downlink
Frequency diversity
Heuristic algorithms
Modulation coding
Physical layer
Resource management
Scheduling algorithm
Time frequency analysis
ISBN:9781424400621, 1424400627
ISSN:1090-3038
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Popis
Shrnutí:We consider the IEEE 802.16 OFDMA system with the frequency diversity frame structure. We perform adaptive coding and modulation, allocation of the time-frequency resource and transmit power to the downlink and uplink service flows, scheduled for transmission in the current frame. We also adapt the position of the frame boundary between the uplink and downlink subframes. We propose three heuristic algorithms that minimize the total power transmitted in both downlink and uplink subframes subject to the maximum transmission power constraints and the available time-frequency resource constraint, while satisfying the QoS requirements for all downlink and uplink service flows scheduled for transmission. Our algorithms take into account the MAC and PHY layers processing in case of ARQ. We evaluate the proposed heuristic algorithms by the system level simulation of the IEEE 802.16 network.
ISBN:9781424400621
1424400627
ISSN:1090-3038
DOI:10.1109/VTCF.2006.265