Sensitivity of a MC-CDMA Beyond 3G System to RF Impairments
نویسندگان
چکیده
The MC-CDMA transmission technique is seen as a candidate for beyond 3G systems. It benefits from the high bandwidth efficiency of multi-carrier systems and the flexibility and granularity offered by CDMA for resources allocation. In the framework of the IST MATRICE European project, a MC-CDMA beyond 3G system has been defined and extensively studied. This paper describes the sensitivity of this system to receiver non-linearity, I&Q mismatch, carrier frequency offset and phase noise. Simulation results show that the higher efficiency of future B3G implies severe constraints on RF frontend.
منابع مشابه
Performance Evaluation of Channel Estimation Techniques for beyond 3G Systems
In this paper two different channel estimation techniques for a mobile beyond 3G MC-CDMA systems are evaluated. These techniques are the robust MMSE estimation with pre-estimator of autocorrelation channel matrix and the delay profile based estimation. Simulation results, carried out over a realistic propagation channel, compare the proposed channel estimation algorithms, in terms of the mean s...
متن کاملThroughput Improvement of STS-Based MC DS-CDMA System with Variable Spreading Factor
The throughput enhancement of Space-Time Spreading (STS)-based Multicarrier Direct Sequence Code Division Multiple Access (MC DS-CDMA) system is investigated in this paper. Variable Spreading Factor (VSF) is utilized to improve the data throughput of the system. In this contribution, an analytical approach is proposed to compute a new expression for the Bit Error Rate (BER) performance of t...
متن کاملA Study on Sub-carrier Selecting MC-CDMA (SCS-MC-CDMA) System in Broadband Wireless Communications
of Invited Paper at Science Session C03 (Beyond 3G and 4G Wireless Communication) A Study on Sub-carrier Selecting MC-CDMA (SCS-MC-CDMA) System in Broadband Wireless Communications Teruya Fujii, Noboru Izuka (contact person), Hiroyoshi Masui, and Atsushi Nagate Information and Communication Labs., Japan Telecom 2-9-1 Hatchobori, Chuo-ku, Tokyo, 104-0032, Japan TEL: +81-3-5540-8420, FAX: +81-3-5...
متن کاملImpact of adaptive modulation on MC-CDMA receiver in beyond 3G systems
The study presented in this paper underlines the capacity increase resulting from the joint use of Multi-Carrier (MC) adaptive modulation techniques and MC-CDMA receiver in the context of Beyond 3G systems. The performance enhancement due to such near optimal rate and power adaptation decreases with diversity order. Moreover, results obtained through two different kinds of Wireless Channels (ET...
متن کاملVectorial channel estimation for uplink MC-CDMA in beyond 3G wireless systems
Ab.stritct-I n beyond 3G wireless systems the bandwidth efficiency can be increased with the use of adaptive antenna arrays. This paper focus on a key issue for adaptive antenna arrays, that is, channel parameters estimation including Direction-Of-Arrival (DOA). I n order to estimate DOA. the channel frequency responses for the links between the mobile users and each of base station array eleme...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2005