Title :
De Bruijn spreading sequences for dense CDMA-based WSNs
Author :
Sarayloo, Mahdiyar ; Gambi, Ennio ; Spinsante, Susanna
Author_Institution :
Dipt. di Ing. dell´Inf. (D.I.I.), Univ.´ Politec. delle Marche, Ancona, Italy
Abstract :
In CDMA-based wireless networks users share the same frequency bands, and can transmit simultaneously. Transmissions from one user causes interference to other users, hence a CDMA-based system is typically interference-limited. The management of mutual interference is directly related to system capacity, and quality of service delivered to the users. This paper shows that by adopting binary De Bruijn sequences as spreading codes in dense CDMA-based systems, it is possible to arrange more users within the same frequency bandwidth, and limit the impact of interference at the same time, with respect to well-known and traditionally adopted sets of spreading codes.
Keywords :
code division multiple access; quality of service; radiofrequency interference; telecommunication network management; wireless sensor networks; CDMA-based system; CDMA-based wireless sensor network user; De Bruijn spreading sequences; binary De Bruijn sequences; dense CDMA-based WSN; frequency bandwidth; mutual interference management; quality of service; spreading codes; system capacity; Cities and towns; Correlation; Gold; Interference; Multiaccess communication; Wireless communication; Wireless sensor networks;
Conference_Titel :
Networks and Communications (EuCNC), 2014 European Conference on
Conference_Location :
Bologna
DOI :
10.1109/EuCNC.2014.6882636
