Long Term Evolution
Authors: Schoenen, Rainer
Chair of Communication Networks (ComNets), Faculty 6, RWTH Aachen University
: Rainer Schoenen
p.p. 265--303, Edited by Furht, B. and Ahson, S.A., Boca Raton, FL, USA,CRC Press (Taylor and Francis), 2009.
Publication Date: May, 2009
On page(s):265--303
ISBN: 978-1-4200-7210-5
Abstract The Long Term Evolution successor of the third generation mobile radio network is expected to delight customers more than ever. The need for radio coverage will be a primary goal in the rollout phase, whereas a high capacity all over the radio cell will be the long term goal. A high spectral efficiency is crucial for supporting the high demand of data traffic rates that future mobile user terminals will generate while the available spectrum is still the scarce and limiting resource at each geographic location. In recent years, the interest in multihop-augmented infrastructure-based networks grew because relaying techniques help improving the coverage and capacity without too much costs for infrastructure. Recently, radio technologies from industry and academia like IEEE 802.16 (WiMAX), HiperLAN/2 and the Winner-II system have multihop support included right from the start. In this chapter it is shown how relaying can be introduced into the LTE protocol stack, what are the basic blocks and what are the extensions. Different approaches are covered for exploiting the benefits of multihop communications, like solutions for radio range extension (trading coverage range for capacity) and solutions to combat shadowing at high radio frequencies. It is shown that relaying can also enhance capacity, e.g. through the exploitation of antenna gains, spatial diversity or by suitable placement against shadowing due to obstructions. Further, multihop is presented as a means to reduce infrastructure deployment costs. With several scenarios the performance is studied and presented here.
Author Keywords
LTE, Relaying
Bibtex
@INBOOK{RS_LTE09,
AUTHOR = {Schoenen, R.},
TITLE = {Long Term Evolution},
YEAR = {2009},
MONTH = {May},
PAGES = {265--303},
PUBLISHER = {CRC Press (Taylor and Francis)},
ADDRESS = {Boca Raton, FL, USA},
SERIES = {Long Term Evolution},
EDITOR = {Furht, B. and Ahson, S.A.},
CHAPTER = {Multihop Extensions to Cellular Networks - The Benefit of Relaying for LTE},
AFFILIATION = {Chair of Communication Networks (ComNets), Faculty 6, RWTH Aachen University},
ISBN = {978-1-4200-7210-5},
KEYWORDS = {LTE, Relaying},
URL = {https://www.comnets.rwth-aachen.de}
}