VTC
2006
IEEE
13 years 10 months ago
2006
IEEE
This paper presents a hybrid automatic repeat request (HARQ) with variable spreading factor (VSF) suitable for a multicarrer code division multiple access (MC-CDMA). We consider a ...
ICC
2007
IEEE
13 years 11 months ago
2007
IEEE
— In this paper, a performance analysis of orthogonal frequency-division multiplexing (OFDM) based ultra-wideband (UWB) systems with frequency-domain spreading is presented. A co...