Results 281 to 290 of about 1,869,227 (335)

Proposal of cross-carrier precoding for carrier aggregation enhancement

2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications, 2011
Carrier aggregation (CA) has been adopted in order to ensure wide bandwidth for high-speed data communications in Long-Term Evolution (LTE)-Advanced. In most existing reports related to the CA technique, processing on the physical (PHY) layer is operated per component carrier (CC). This is because the independence of each CC in the PHY layer is assumed
Yuji Ikeda, Issei Kanno, Toru Kitayabu, Hiroyasu Ishikawa   +3 more
openaire   +1 more source

Analyses of Interferences between Component Carriers in Carrier Aggregation

2011 Third International Conference on Communications and Mobile Computing, 2011
Support of wider bandwidth up to 100MHz is one of the key features for LTE-Advanced system. Carrier aggregation (CA) has been studied as major a solution. As to continuous carrier aggregation, there may be an interference between component carriers (CCs), and we need to analyze and evaluate the interference to optimize the system.
Qingzhan Zeng, Zhiping Shi, Wentao Wang, Zijia Hu   +3 more
openaire   +1 more source

Dissecting Carrier Aggregation in 5G Networks: Measurement, QoE Implications and Prediction

Conference on Applications, Technologies, Architectures, and Protocols for Computer Communication
By aggregating multiple channels, Carrier Aggregation (CA) is an important technology for boosting cellular network bandwidth. Given diverse radio bands made available in 5G networks, CA plays a particularly critical role in achieving the goal of multi ...
Wei Ye, Xinyue Hu, Steven Sleder, Anlan Zhang, Udhaya Kumar Dayalan, Ahmad Hassan, Rostand A. K. Fezeu, Akshay Jajoo, Myungjin Lee, Eman Ramadan, Feng Qian, Zhi-Li Zhang   +11 more
semanticscholar   +1 more source

LNA topologies for RX carrier aggregation

2016 International SoC Design Conference (ISOCC), 2016
Performance of the low-noise amplifier (LNA) determines the sensitivity, impedance matching (reflection), and other critical parameters of the receiver. Carrier aggregation (CA) in LTE-Advanced and upcoming 5G requires the LNA to support multiple-outputs without degrading its dynamic range (DR) performance and thus requires the architectural changes ...
Jusung Kim, Keunkwan Ryu, Sungchan Kim, Sanghun Lee   +3 more
openaire   +1 more source

Carrier aggregation across wireless access technologies

2012 8th International Symposium on Mechatronics and its Applications, 2012
In order to increase system capacity and improve UE peak throughput, 3GPP has introduced Multi Carrier operation for HSPA by aggregating 2 adjacent carriers in Release 8 and further enhancements in Release 9 by aggregating upto 4 non adjacent carriers.
Lutfi Albasha, Sami M. Sagali
openaire   +1 more source

Enhancing Carrier Aggregation: Design of BAW Quadplexer With Ultrahigh Cross-Band Isolation

IEEE Microwave Magazine, 2020
Carrier aggregation (CA) is a technology first introduced in LTE-Advanced (LTE-A) to increase the peak data rate of 4G networks (for example, the maximum available speed) [1].
Yuchen Cao, Haifeng Lyu, Kenle Chen
semanticscholar   +1 more source

Perceptive Packet Scheduling for Carrier Aggregation in Satellite Communication Systems

ICC 2020 - 2020 IEEE International Conference on Communications (ICC), 2020
Carrier Aggregation is one of the essential approaches to achieve several orders of magnitude increase in peak data rates. While carrier aggregation benefits have been extensively studied in terrestrial wireless systems, its application to satellite has ...
H. Al-Hraishawi, N. Maturo, Eva Lagunas, S. Chatzinotas   +3 more
semanticscholar   +1 more source

Carrier aggregation in heterogeneous cellular networks

2013 IEEE International Conference on Communications (ICC), 2013
Heterogeneous networks (HetNets) and carrier aggregation (CA) are two distinct features of next-generation cellular networks. Small cells in HetNets are vital for data off-loading and can significantly improve area and cell edge spectral efficiency compared to using just macrocells.
Xingqin Lin, Jeffrey G. Andrews, Rapeepat Ratasuk, Bishwarup Mondal, Amitava Ghosh   +4 more
openaire   +1 more source

Analysis and optimization of 4G long term evolution (LTE) network in urban area with carrier aggregation technique on 1800 MHz and 2100 MHz frequencies

, 2020
Technology in sector communication is growth rapidly, which is marked by the increasing number of facilities offered, for example the growth of data, voice and video communication.
S. Pramono, M. Ariyanto, Lia Alvionita, M. E. Sulistyo   +3 more
semanticscholar   +1 more source

A framework for enhanced carrier aggregation with dynamic carrier selection

2013 IFIP Wireless Days (WD), 2013
This paper proposes a framework for an enhanced form of Carrier Aggregation, with the focus on carrier selection mechanism that considers different types of shared spectrum resources for the aggregation. In addition to a spectrum class already owned by the operator, we envisage two additional shared spectrum classes, activated dynamically, according to
Jasmina McMenamy, Irene Macaluso, Nicola Marchetti, Linda Doyle   +3 more
openaire   +1 more source