Journal ArticleDOI
LTE-advanced: next-generation wireless broadband technology [Invited Paper]
TLDR
An overview of the techniques being considered for LTE Release 10 (aka LTEAdvanced) is discussed, which includes bandwidth extension via carrier aggregation to support deployment bandwidths up to 100 MHz, downlink spatial multiplexing including single-cell multi-user multiple-input multiple-output transmission and coordinated multi point transmission, and heterogeneous networks with emphasis on Type 1 and Type 2 relays.Abstract:
LTE Release 8 is one of the primary broadband technologies based on OFDM, which is currently being commercialized. LTE Release 8, which is mainly deployed in a macro/microcell layout, provides improved system capacity and coverage, high peak data rates, low latency, reduced operating costs, multi-antenna support, flexible bandwidth operation and seamless integration with existing systems. LTE-Advanced (also known as LTE Release 10) significantly enhances the existing LTE Release 8 and supports much higher peak rates, higher throughput and coverage, and lower latencies, resulting in a better user experience. Additionally, LTE Release 10 will support heterogeneous deployments where low-power nodes comprising picocells, femtocells, relays, remote radio heads, and so on are placed in a macrocell layout. The LTE-Advanced features enable one to meet or exceed IMT-Advanced requirements. It may also be noted that LTE Release 9 provides some minor enhancement to LTE Release 8 with respect to the air interface, and includes features like dual-layer beamforming and time-difference- of-arrival-based location techniques. In this article an overview of the techniques being considered for LTE Release 10 (aka LTEAdvanced) is discussed. This includes bandwidth extension via carrier aggregation to support deployment bandwidths up to 100 MHz, downlink spatial multiplexing including single-cell multi-user multiple-input multiple-output transmission and coordinated multi point transmission, uplink spatial multiplexing including extension to four-layer MIMO, and heterogeneous networks with emphasis on Type 1 and Type 2 relays. Finally, the performance of LTEAdvanced using IMT-A scenarios is presented and compared against IMT-A targets for full buffer and bursty traffic model.read more
Citations
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The Cell Switch-Off Approach for Energy Efficient Cellular Networks
TL;DR: This thesis defines an energy-efficient cellular network as one in which as few BSs as possible are switched on while still satisfying all the users demand and quality of service, and proposes a dynamic CSO algorithm based on the well-known set cover problem.
Journal ArticleDOI
Throughput Performance of mmWave HetNets using Three-sector Picocell
Fumiya Kemmochi,Hiroyuki Otsuka +1 more
Journal ArticleDOI
Personal Picocell Scheme Using Adaptive Control CRE in Heterogeneous Mobile Networks
TL;DR: It is confirmed that the personal picocell scheme using the adaptive control CRE can improve the 5-percentile user throughput while maintaining the average user throughput compared with that of conventional CRE.
Journal Article
Interference Management in Long Term Evolution-Advanced System
TL;DR: Simulation results show the advantages of carrier aggregation and higher order MIMO schemes on the system capacity, peak data rate, spectral efficiency and spectral efficiency of the LTE-Advanced performance.
Proceedings ArticleDOI
Performance of downlink control channels for Mobile Hotspot Network system
TL;DR: New frame structures and pilot patterns for FDD (Frequency Division Duplex) and TDD (Time Division DupLex) of MHN system are proposed and the performance of downlink control channels meet the required SNR.
References
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Proceedings ArticleDOI
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