Band division multiple access (BDMA) system. A novel approach for next generation mobile telecommunication system, based on OFDM and SFH-TDMA

Suzuki, Masatoshi; Böhnke, R.; Sakoda, Kazuyuki

doi:10.1109/vetec.1998.686455

Cited by 6 publications

(2 citation statements)

References 3 publications

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“…However, most of these schemes were not considered in a multicell environment, where the effect of intercell interference by other cells should be considered. In [5], the interference averaging method and the interference avoidance method are introduced and the interference avoidance technique was shown to be an outperforming technique. Another key consideration in designing a multicell cellular environment would be frequency reuse, which is the ability to use the same frequencies repeatedly.…”

Section: Introductionmentioning

confidence: 99%

Channel state-aware joint dynamic cell coordination scheme using adaptive modulation and variable reuse factor in OFDMA downlink

Byun

Kim

2007

Telecommun Syst

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This paper proposes three different dynamic cell coordination schemes using adaptive link adaptation and variable frequency reuse for OFDMA downlink cellular networks, which are composed of greedy cell coordination for flat fading channel, dynamic maximum C/I cell coordination (DMCC), and dynamic proportional fairness cell coordination (DPFCC) for frequency selective fading channel. The performances of the proposed dynamic cell coordination schemes are compared to those with no cell coordination schemes and static reuse coordination schemes using conventional proportional fair (PF) scheduling in terms of system throughput and fairness. Simulation results demonstrate that the proposed schemes allow the radio network controller (RNC) and base stations (BSs) to apply different reuse factors on each subchannel in consideration of different interference conditions of individual users so as to increase the system throughput and guarantee QoS requirement of each user on the multicell environment, where the performance of conventional OFDMA downlinks might have become degraded due to persistent interference from other cells. In frequency flat fading, the proposed dynamic

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Section: Introductionmentioning

confidence: 99%

Channel state-aware joint dynamic cell coordination scheme using adaptive modulation and variable reuse factor in OFDMA downlink

Byun

Kim

2007

Telecommun Syst

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“…However, most of the algorithms were not considered in a multicell environment. An inter-cell interference avoidance technique was proposed [5]. A key consideration in designing a multicell cellular environment was frequency reuse, which is the ability to use the same frequencies repeatedly.…”

Section: Introductionmentioning

confidence: 99%

Channel State-Aware Joint Dynamic Cell Coordination Scheme Using Adaptive Modulation and Variable Reuse Factor in OFDMA Downlink

Byun

Kim

2006

Personal Wireless Communications

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Abstract. In this paper, two different dynamic cell coordination stratagies for frequency selective and flat fading are proposed for efficient subcarrier allocation in the joint consideration of adaptive modulation and variable frequency reuse in the channel-aware OFDMA downlink multicellular environment. Compared to a conventional OFDMA system without cell coordination, where system throughput may become degraded due to the persistent interference from other cells, the proposed system dynamically allows RNC to apply different reuse factors on each subchannel and scheduling in consideration of channel and interference conditions of individual users so as to increase the system throughput and guarantee QoS of each user. In a selective fading channel, the proposed schemes showed 2.6 times as large throughput as that of a single reuse factor of one for all subcarriers. In a frequency flat fading, the dynamic scheme with the proposed scheduling achieves on average three times larger throughput than the conventional dynamic scheme [8].

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Spectral efficient modulation schemes in a SFH-TDMA orthogonal frequency division multiplexing (OFDM) wireless communication system to support advanced services

Böhnke¹,

Suzuki²,

Sakoda³

VTC '98. 48th IEEE Vehicular Technology Conference. Pathway to Global Wireless Revolution (Cat. No.98CH36151)

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Band division multiple access (BDMA) system. A novel approach for next generation mobile telecommunication system, based on OFDM and SFH-TDMA

Cited by 6 publications

References 3 publications

Channel state-aware joint dynamic cell coordination scheme using adaptive modulation and variable reuse factor in OFDMA downlink

Channel state-aware joint dynamic cell coordination scheme using adaptive modulation and variable reuse factor in OFDMA downlink

Channel State-Aware Joint Dynamic Cell Coordination Scheme Using Adaptive Modulation and Variable Reuse Factor in OFDMA Downlink

Spectral efficient modulation schemes in a SFH-TDMA orthogonal frequency division multiplexing (OFDM) wireless communication system to support advanced services

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