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Heterogeneous networks with LTE-Advanced technologies
Bell Labs Technical Journal, 2013Heterogeneous networks (HetNets) are a powerful solution to handle the rapidly increasing demand for mobile broadband bandwidth and are a key concept of Alcatel-Lucent's lightRadioTM strategy. HetNets consist of small cells embedded in a macrocellular network and enable flexible and scalable capacity enhancements. The first part of this paper discusses
Oliver Stanze, Andreas Weber 0001
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2012
From the editors of the highly successful LTE for UMTS: Evolution to LTE-Advanced, this new book examines the main technical enhancements brought by LTE-Advanced, thoroughly covering 3GPP Release 10 specifications and the main items in Release 11. Using illustrations, graphs and real-life scenarios, the authors systematically lead readers through this ...
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From the editors of the highly successful LTE for UMTS: Evolution to LTE-Advanced, this new book examines the main technical enhancements brought by LTE-Advanced, thoroughly covering 3GPP Release 10 specifications and the main items in Release 11. Using illustrations, graphs and real-life scenarios, the authors systematically lead readers through this ...
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Evolution of uplink MIMO for LTE-advanced
IEEE Communications Magazine, 2011The evolution of LTE uplink transmission toward MIMO has recently been agreed in 3GPP, including the support of up to four-layer transmission using precoded spatial multiplexing as well as transmit diversity techniques. In this article, an overview of these uplink MIMO schemes is presented, along with their impact on reference signals and DL control ...
Chester Sungchung Park +3 more
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Impact of Relays on LTE-Advanced Performance
2010 IEEE International Conference on Communications, 2010This paper studies the performance and coverage improvements introduced by relay deployment in LTE-Advanced systems. Different relay deployment strategies are investigated, namely, amplify-and-forward (AF) repeaters and decode-and-forward (DF) relays (orthogonal and non-orthogonal modes).
Letian Rong +2 more
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Mobile relay in LTE-advanced systems
IEEE Communications Magazine, 2013Voice and data communications on high speed vehicles encounter bad channel condition, high call drop rate, serious signaling congestion and excessive power consumption of UE. Mobile relay technology which features on-board relay node is expected to improve the quality of service for passengers. However, the design for fixed relay in LTE-Advanced system
Lin Chen +8 more
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Designing Energy-Efficient Wireless Access Networks: LTE and LTE-Advanced [PDF]
IEEE Internet Computing, 2013 As large energy consumers, base stations need energy-efficient wireless access networks. This article compares the design of Long-Term Evolution (LTE) networks to energy-efficient LTE-Advanced networks. LIE-Advanced introduces three new functionalities -
Margot Deruyck +2 more
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On the dimensioning of LTE and LTE‐advanced networks
Transactions on Emerging Telecommunications Technologies, 2015AbstractNetwork design consists of evaluating cell coverage and capacity and may involve many parameters related to environment, system configuration and quality of service requirements. The key parameter for cost optimised Long Term Evolution (LTE)‐based network dimensioning is to provide a tight approximation of the effective signal‐to‐interference ...
Marwane Ben Hcine, Ridha Bouallegue
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Cooperative communication technologies for LTE-advanced
2010 IEEE International Conference on Acoustics, Speech and Signal Processing, 2010The LTE-Advanced (LTE-A) system is currently under development to allow for significantly higher spectral efficiency and data throughput than LTE systems. In a wireless system based on orthogonal frequency division multiplexing (OFDM) with frequency reuse factor one such as LTE, the achievable cell spectral efficiency is often limited by the inter-cell
Young-Han Nam +5 more
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Recent Results on Relaying for LTE-Advanced
2009 IEEE 70th Vehicular Technology Conference Fall, 2009Relays are being proposed as key technology elements for LTE-Advanced (LTE-A). This paper shows that throughput gains of using relays in a cellular network (relative to a network without relays) are highly dependent on relay coverage which is defined as the percentage of users served by relays.
Jialing Liu, Robert Love, Ajit Nimbalker
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LTE-advanced and the evolution of LTE deployments
IEEE Wireless Communications, 2011The fourth generation (4G) wireless technology known as Long Term Evolution (LTE) allows cellular operators to use new and wider spectrum and complements third generation (3G) networks with higher user data rates, lower latency, and a flat Internet Protocol (IP)-based network architecture.
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