scispace - formally typeset
Search or ask a question
Topic

LTE Advanced

About: LTE Advanced is a research topic. Over the lifetime, 4055 publications have been published within this topic receiving 74262 citations. The topic is also known as: Long-Term Evolution Advanced & LTE-A.


Papers
More filters
Proceedings ArticleDOI
09 Jun 2013
TL;DR: An exemplary rural fiber to the home (FTTH) network is considered as mobile backhaul and finds that delays between adjacent sites are below 1 ms, and impairment effects due to the delay can be reduced by feedback compression, shorter delays in the air interface and Doppler-delay based channel prediction.
Abstract: In this paper, we provide an overview on backhaul requirements in mobile networks featuring inter-site cooperation. We consider a heterogeneous deployment, where small cells are embedded into macro-cells. For reducing inter-cell interference, we consider intra- and inter-site joint transmission (JT)-coordinated multi-point (CoMP) in fully flexible cooperation clusters. Backhaul traffic for a macro-cell site scales linearly with the number of small cells and multiplicative by introducing cooperation. All features in LTE-Advanced together push the backhaul traffic up to 100 Gbit/s per site. JT-CoMP is sensitive to the feedback delay.We consider an exemplary rural fiber to the home (FTTH) network as mobile backhaul and find that delays between adjacent sites are below 1 ms. Impairment effects due to the delay can be reduced by feedback compression, shorter delays in the air interface and Doppler-delay based channel prediction.

43 citations

Journal ArticleDOI
TL;DR: This article provides an overview of the different approaches currently being considered for LTE operation in unlicensed bands and their interaction with WiFi networks, and describes the trade-offs between these approaches.
Abstract: Using LTE in unlicensed bands will allow operators to access additional spectrum to meet the increasing demand for mobile services. In this article, we provide an overview of the different approaches currently being considered for LTE operation in unlicensed bands and their interaction with WiFi networks. In summary, LTE-Unlicensed with carrier sense adaptive transmission is likely to be available in the short term, but cannot be used in all regions due to regulatory restrictions. License assisted access is intended for use more widely, so it will include listen-before-talk and other features required to conform with, for example, European and Japanese regulations. However, this will require changes to the LTE standards, so license assisted access is likely to take longer to deploy. In addition to describing the trade-offs between these approaches, we also discuss the issue of fair coexistence with existing unlicensed band users, especially WiFi devices.

43 citations

Journal ArticleDOI
TL;DR: The paper argues that the proposed MAC-RNC solution provides fundamentally new set of opportunities for dynamic collaborative transmission, content awareness, resource allocation and unequal error protection (UEP) necessary for efficient wireless multimedia delivery in LTE/LTE-A.
Abstract: Random Network Coding (RNC) has recently been investigated as a promising solution for reliable multimedia delivery over wireless networks. RNC possess the potential for flexible and adaptive matching of packet-level error resilience to both video content importance and variable wireless channel conditions. As the demand for massive multimedia delivery over fourth generation wireless cellular standards such as Long-Term Evolution (LTE)/LTE-Advanced (LTE-A) increases, novel video-aware transmission techniques are needed. In this paper, we investigate RNC as one such promising technique, building upon our recent work on RNC integration within the LTE/LTE-A Radio Access Network at the Multiple Access Control (MAC) layer (MAC-RNC). The paper argues that the proposed MAC-RNC solution provides fundamentally new set of opportunities for dynamic collaborative transmission, content awareness, resource allocation and unequal error protection (UEP) necessary for efficient wireless multimedia delivery in LTE/LTE-A.

43 citations

Journal ArticleDOI
TL;DR: A study of downlink scheduling algorithms present in the literature is put forth and performance evaluation of four algorithms proposed for LTE downlink is carried out.
Abstract: Long Term Evolution (LTE) is one of the fastest growing technologies which supports variety of applications like video conferencing, video streaming, VoIP, file transfer, web browsing etc. In order to support multiple applications, Radio Resource Management (RRM) procedure is one of the key design roles for improving the system performance. LTE system effectively utilizes the resources by dynamically scheduling the users in both frequency and time domain. However, scheduling algorithms are not defined in the Third Generation Partnership Project (3GPP) specifications. Therefore, it becomes one of the special interests for service providers. In this paper a study of downlink scheduling algorithms present in the literature is put forth and performance evaluation of four algorithms proposed for LTE downlink is carried out. This paper also discusses the key issues of scheduling algorithms to be considered for future traffic requirements.

43 citations

Journal ArticleDOI
TL;DR: The characteristic of Home-eNB is overviewed and the mobility management issues and the related approaches in 3GPP LTE based Home- eNB systems are described.
Abstract: The specification of the Home Evolved NodeB (Home-eNB), which is a small base station designed for use in residential or small business environment, is currently ongoing in 3GPP LTE (Long Term Evolution) systems. One of the key requirements for its feasibility in the LTE system is the mobility management in the deployment of the numerous Home-eNBs and other 3GPP network. In this paper, we overview the characteristic of Home-eNB and also describe the mobility management issues and the related approaches in 3GPP LTE based Home-eNB systems. Keywords : Home-eNB, 3GPP LTE (Long Term Evolution), Mobility Management 1. Introduction issues of HeNB in 3GPP LTE systems and related approaches A significant interest within the telecommunications industry has recently focused on the femto-cell which is defined broadly as low-cost, low-power cellular base stations that operate in licensed spectrum to connect conventional, unmodified mobile terminals to a mobile operator’s network [1][2][3]. Femto-cell has been actively discussed in 3

43 citations


Network Information
Related Topics (5)
Wireless network
122.5K papers, 2.1M citations
92% related
Wireless ad hoc network
49K papers, 1.1M citations
92% related
Wireless
133.4K papers, 1.9M citations
91% related
Network packet
159.7K papers, 2.2M citations
90% related
Fading
55.4K papers, 1M citations
89% related
Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202316
202242
202156
202082
2019135
2018192