Title :
IFDM for Downlink Wireless Access Scheme and Performance Comparison to MC-CDM
Author :
Takyu, Osamu ; Nakagawa, Masao
Author_Institution :
Keio Univ., Yokohama
Abstract :
Interleaved frequency division multiple access (IFDM A) is frequency orthogonal multiple access scheme and acquires high frequency diversity gain. In addition, the peak to average power ratio (PAPR) of IFDM symbol is small due to the single carrier modulation and thus the nonlinear amplifier having good power efficiency can be used in the mobile station. If an IFDMA is applied to the down link access (from base station to mobile station), the power consumption can be saved. However, the interleaved frequency division multiplexing (IFDM) has not been clarified yet for down link access. In this paper, we evaluate the error rate performance and PAPR performance with using the computer simulation. We derive the advantages and the disadvantages of IFDM compared to multicarrier code division multiplexing (MC-CDM).
Keywords :
OFDM modulation; code division multiple access; diversity reception; frequency division multiple access; radio access networks; radio links; IFDM; MC-CDM; diversity gain; downlink wireless access scheme; frequency orthogonal multiple access; interleaved frequency division multiple access; mobile station; multicarrier code division multiplexing; nonlinear amplifier; Base stations; Computer simulation; Downlink; Energy consumption; Error analysis; Frequency conversion; Frequency diversity; Frequency division multiplexing; Peak to average power ratio; Power amplifiers;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2007. PIMRC 2007. IEEE 18th International Symposium on
Conference_Location :
Athens
Print_ISBN :
978-1-4244-1144-3
Electronic_ISBN :
978-1-4244-1144-3
DOI :
10.1109/PIMRC.2007.4394232
