Title :
Increase data rate in MB-OFDM uwb using hybrid digital modulation
Author :
Quboa, Kaydar M. ; Ahmad, B.M. ; Mohammad, M.J.
Author_Institution :
Coll. of Eng., Univ. of Mosul, Mosul, Iraq
Abstract :
The Multi Band-Orthogonal Frequency Division Multiplexing Ultra Wide Band (MB - OFDM UWB) system is a low power (-41.3 dBm/MHz); short-range (less than 20 m); high speed (53.3∓480 Mbps) wireless technology with band width (3.1 to 10.6) GHz. The UWB spectrum is divided into 14 sub bands, each with 528 MHz bandwidth. Each OFDM symbol is transmitted / received a cross each sub band. In this paper, a hybrid digital modulation technique is proposed to increase the data rate in IEEE 802.15.3a MB-OFDM UWB standard. The hybrid digital modulation, QPSK & 16-QAM, is proved to double the data rate as compared with IEEE 802.15.3a QPSK modulation within acceptable limit of Bit Error Rate (BER).
Keywords :
OFDM modulation; error statistics; quadrature phase shift keying; ultra wideband communication; 16 QAM; BER; IEEE 802.15.3a MB OFDM UWB standard; IEEE 802.15.3a QPSK modulation; MB OFDM UWB system; OFDM symbol; UWB spectrum; bit error rate; data rate; high speed wireless technology; hybrid digital modulation; low power wireless technology; multiband orthogonal frequency division multiplexing ultra wide band system; short range wireless technology; Bit error rate; Digital modulation; Educational institutions; OFDM; Phase shift keying; Resource management; 16-QAM; BER; MB-OFDM UWB; QPSK;
Conference_Titel :
Telecommunications Forum (TELFOR), 2012 20th
Conference_Location :
Belgrade
Print_ISBN :
978-1-4673-2983-5
DOI :
10.1109/TELFOR.2012.6419337
