Vieri Vanghi

Learn More
Long-Term Evolution (LTE) allows operators to use new and wider spectrum and complements 3G networks with higher data rates, lower latency and a flat IP-based architecture. To further improve broadband user experience in a ubiquitous and cost effective manner, 3GPP has been working on various aspects in the framework of LTE Advanced. Since radio link(More)
In this paper, we investigate the code allocation problem of forward link channelization, i.e., allocation of Walsh codes and quasi-orthogonal functions (QOF’s) in cdma2000 systems. Given multipath power profiles, geometry factors, and allocated codes of mobile stations (MS’s), we propose a simple solution for the total sector transmit power. It is shown(More)
This paper presents a comparison of the forward link performance of the RDR and lXTREME systems. Both systems have been proposed as possible evolutionary paths for the 1.25-MHz cdma2000 system [I], and have been designed to enable high data rate packet transmission. Link-level performance is evaluated by chip-level time-domain simulation of the forward data(More)