On Increasing the Spectral Efficiency More Than 100% by User-In-The-Control-Loop
Author(s): Schoenen,R.
Chair of Communication Networks (ComNets), Faculty 6, RWTH Aachen University
Contact: publications@comnets.rwth-aachen.de
Proceedings of the APCC'2010
,
p.
6
, Auckland, NZ
Year: 2010
On page(s):6
ISBN: 978-1-4244-8171-2
Abstract OFDMA has become the key technology for future cellular wireless networks like the IMT-Advanced systems IEEE 802.16m and 3GPP LTE-A. The advantage of allowing different modulation&coding schemes (PhyModes) adaptively for each radio resource is at the same time a new disadvantage because the performance is now distance-dependent from the base station (BS) and the total spectral efficiency depends on how user terminals (UTs) are provided with service opportunities. Instead of increasing the effort to support cell-edge users with high data rates this paper investigates the chances of letting the user participate in the process such that his mobility becomes utilitydriven, in a similar way the user behaves in 802.11 hotspot areas. The users willingness to move to regions of higher SINR must be supported by a display of the current situation (and indications where to move) plus a utility model (lower cost or higher data rate) which motivates moving a distance monotonic in the utility value. By giving input to the user and utilizing the output of his behavior the user becomes a member of the control loop, in a system theoretic sense. The paper shows numeric results of common scenarios and compares the old and new paradigms.
Author Keywords
IMT-Advanced,
LTE, Relays,
User-in-the-loop
DownloadBibtex
@PROCEEDINGS{APCC2010rs
AUTHOR = {Schoenen,R.} ,
TITLE = {On Increasing the Spectral Efficiency More Than 100% by User-In-The-Control-Loop} ,
YEAR = {2010} ,
MONTH = {Nov} ,
PAGES = {6},
ADDRESS = {Auckland, NZ},
BOOKTITLE = {Proceedings of the APCC'2010},
AFFILIATION = {Chair of Communication Networks (ComNets), Faculty 6, RWTH Aachen University},
ISBN = {978-1-4244-8171-2 },
KEYWORDS = {IMT-Advanced,
LTE, Relays,
User-in-the-loop},
URL = {https://www.comnets.rwth-aachen.de}