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Integrated Common Radio Resource Management with Spectrum Aggregation Over Non-Contiguous Frequency Bands

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Abstract

This paper proposes an Integrated Common Radio Resource Management (iCRRM). The iCRRM performs classic CRRM functionalities jointly with Spectrum Aggregation (SA), being able to switch users between non-contiguous frequency bands. The SA scheduling is obtained with an optimised General Multi-Band Scheduling algorithm with the aim of cell throughput maximisation. In particular, we investigate the dependence of the throughput on the cell coverage distance for the allocation of users over the 2 and 5 GHz bands for a single operator scenario under a constant average Signal to Interference-plus-Noise Ratio. For the performed evaluation, the same type of Radio Access Technology is considered for both frequency bands. The operator has the availability of a non-shared 2 GHz band and has access to part (or all) of a shared frequency band at 5 GHz. The performance gain, analysed in terms of data throughput, depends on the channel quality for each user in the considered bands which, in turn, is a function of the path loss, interference, noise, and the distance from the Base Station. An almost constant gain near 30% was obtained with the proposed optimal solution compared to a system where users are first allocated in one of the two bands and later not able to handover between the bands.

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Abbreviations

AC:

Allocation Constraint

ACK:

Acknowledgement

AMC:

Adaptive Modulation and Coding

BC:

Bandwidth Constraint

BS:

Base Station

CA:

Carrier Aggregation

CPICH:

Common Pilot Channel

CQI:

Channel Quality Indicator

CRRM:

Common RRM

DL:

Downlink

GAP:

General Assignment Problem

GMBS:

General Multi-Band Scheduling

H-ARQ:

Hybrid Automatic Repeat Request

HSDPA:

High Speed Downlink Packet Access

HS-DPCCS:

High-Speed Dedicated Physical Control Channel

IMT-A:

International Mobile Telecommunications-Advanced

IP:

Integer Programming

LTE:

Long Term Evolution

LTE-A:

Long Term Evolution-Advanced

MBS:

Multi-Band Scheduling

MCS:

Modulation and Coding Scheme

MO-GAP:

Multiple Objectives GAP

MPDU:

MAC Packet Data Unit

MS:

Mobile Station

NRTV:

Near Real Time Video

PER:

Packet Error Rate

PF:

Profit Function

PHY:

Physical Layer

QoE:

Quality of Experience

QoS:

Quality of Service

RA:

Resource Allocation

RAN:

Radio Access Network

RNC:

Radio Network Controller

RR:

Round Robin

RRM:

Radio Resource Management

SA:

Spectrum Aggregation

SINR:

Signal to Interference-plus-Noise Ratio

SIR:

Signal-to-Interference Ratio

SO-GAP:

Single Objective General Assignment Problem

ST:

Service Throughput

TTI:

Time Transmission Interval

WCDMA:

Wideband Code Division Multiple Access

iCRRM:

Integrated CRRM

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Authors and Affiliations

  1. Instituto de Telecomunicações, DEM, Universidade da Beira Interior, Covilhã, Portugal

    O. Cabral & F. J. Velez

  2. Electronics and Telecommunication Department, Università di Firenze, Florence, Italy

    F. Meucci

  3. Center for TeleInFrastruktur (CTIF), Aalborg University, Aalborg, Denmark

    O. Cabral, F. Meucci, A. Mihovska, N. R. Prasad & R. Prasad

Authors
  1. O. Cabral
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  2. F. Meucci
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  3. A. Mihovska
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  4. F. J. Velez
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  5. N. R. Prasad
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  6. R. Prasad
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Correspondence to O. Cabral.

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Cabral, O., Meucci, F., Mihovska, A. et al. Integrated Common Radio Resource Management with Spectrum Aggregation Over Non-Contiguous Frequency Bands. Wireless Pers Commun 59, 499–523 (2011). https://doi.org/10.1007/s11277-011-0242-6

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  • DOI: https://doi.org/10.1007/s11277-011-0242-6

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