UTRA TDD dynamic channel allocation in uplink with slow reallocation

Lehtinen, O.; Kurjenniemi, Janne

doi:10.1109/vetecs.2003.1207859

Cited by 5 publications

(5 citation statements)

References 5 publications

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“…Slow DCA allocates resources to cells and fast DCA reallocates resources to bearer services. The slow DCA algorithm dynamically allocates resource units to a cell-related priority and preference lists, based on negotiation and measurements between adjacent cells, which classify the time slots so as to avoid the inter-cell interference, used as input to fast DCA [6]. As more advanced approaches to DCA, multi-dimensional optimization frameworks and solution have been proposed to show that dynamic resource allocation (DRA) can effectively handle the asymmetric traffic load over the UL and DL, while warranting the required signal-to-interference ratio (SIR) [8,9].…”

Section: Illustrating Examples For Inter-cell Interferencementioning

confidence: 99%

“…It averages the interference level of each slot so as to avoid the excessive interference. In most of the fast DCA algorithms, the priority metric is introduced to prioritize each time slot when a bearer service requires radio resource in the cell [6,10]. A straightforward approach is to select a time slot for each cell in a random manner, which is referred to as a random channel allocation (RCA) scheme [6,10,15].…”

Section: The Existing Fast Dca Algorithms For the Td-scdma Systemmentioning

confidence: 99%

“…In general, the RCA scheme merely resorts to the interference averaging effect rather than providing any means of interference control. Another simplest form of fast DCA is to allocate user to a time slot with the lowest downlink transmit power [6]. The least interference channel allocation (LICA) algorithm is one particular approach to control interference [4].…”

Section: The Existing Fast Dca Algorithms For the Td-scdma Systemmentioning

confidence: 99%

“…In TD-SCDMA system, dynamic channel allocation (DCA) is one of the most critical technologies that govern the overall capacity and service quality [4][5][6][7][8][9][10]. It can play an essential role in managing the various types of inter-cell interference, including the cross-time slot (CTS) interference that is a unique aspect in TDD systems.…”

Section: Introductionmentioning

confidence: 99%

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Interference-Adaptive Fast Dynamic Channel Allocation in TD-SCDMA System

Min

Kim

et al. 2010

Wireless Pers Commun

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This paper proposes a new priority metric for fast dynamic channel allocation (DCA) in TD-SCDMA system, which reallocates radio resource units (RUs) to bearer services in a cell. It allows for developing a new interference-adaptive fast DCA algorithm, which is more flexible with a non-uniform user distribution. It considers the relative transmission opportunities with respect to the residual capacity and co-channel interference levels for all users, which steadily varies in the real communication environment. The proposed fast DCA algorithm aims to fully utilize the physical resource available in the time-division duplexing (TDD)-based CDMA system subject to the various types of inter-cell interference, as opposed to most existing algorithms in which traffic load and quality of service cannot be jointly balanced among the multiple radio resource units in a flexible manner. The simulation results show that the proposed algorithm improves the outage performance while reducing the average system interference, achieving full utilization of the physical resource, i.e., 48 RUs in TD-SCDMA, over a wide range of acceptable outage performance.

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Section: Illustrating Examples For Inter-cell Interferencementioning

confidence: 99%

Section: The Existing Fast Dca Algorithms For the Td-scdma Systemmentioning

confidence: 99%

Section: The Existing Fast Dca Algorithms For the Td-scdma Systemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Interference-Adaptive Fast Dynamic Channel Allocation in TD-SCDMA System

Min

Kim

et al. 2010

Wireless Pers Commun

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“…Without special channel allocation scheme implemented, channels can be randomly assigned to calls [2]. Random allocation can be summarized as followed:…”

Section: A Random Allocationmentioning

confidence: 99%

A Novel Channel Allocation Scheme in TD-SCDMA

Liu

Wang

Zhang

2006

IEEE Vehicular Technology Conference

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Flexible channel allocation is one of the key advantages in TD-SCDMA system. In this paper, a novel channel allocation scheme based on pathloss partitioning is proposed to resist near-far effect and improve the system robust. The proposed scheme is evaluated by means of simulation and the results are compared to that of a system configured with other allocation schemes. It can be seen that the proposed scheme provides better system performance in terms of outage probability.

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Comparison of dynamic channel allocation schemes in downlink in UTRA TDD

Kurjenniemi

Lehtinen²

14th IEEE Proceedings on Personal, Indoor and Mobile Radio Communications, 2003. PIMRC 2003.

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UTRA TDD dynamic channel allocation in uplink with slow reallocation

Cited by 5 publications

References 5 publications

Interference-Adaptive Fast Dynamic Channel Allocation in TD-SCDMA System

Interference-Adaptive Fast Dynamic Channel Allocation in TD-SCDMA System

A Novel Channel Allocation Scheme in TD-SCDMA

Comparison of dynamic channel allocation schemes in downlink in UTRA TDD

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