Title :
A novel multiple access scheme for uplink cellular systems
Author :
Je, Hui Won ; Kim, Kyung Min ; Shin, Oh-Soon ; Lee, Won-Ick ; Lee, Kwang Bok ; Bahk, Saewoong
Author_Institution :
Sch. of Electr. Eng., Seoul Nat. Univ., South Korea
Abstract :
A novel multiple access scheme for the uplink cellular systems, referred to as FH/SS-OFDMA, is proposed. The proposed scheme employs both frequency hopping and code multiplexing on the frequency domain to acquire frequency diversity and suppress intercell interference. The performance of the proposed scheme is investigated and evaluated in cellular environments and compared with that of other multiple access schemes. It has been found that the proposed one outperforms other multiple access schemes. Simulation results for various parameters, such as system load, modulation scheme, spreading factor, and interference level are also presented.
Keywords :
4G mobile communication; adjacent channel interference; cellular radio; code division multiplexing; diversity reception; frequency division multiple access; frequency hop communication; interference suppression; spread spectrum communication; FH/SS-OFDMA; code multiplexing; frequency diversity; frequency domain; frequency hopping; intercell interference suppression; interference level; modulation scheme; multiple access scheme; performance; spreading factor; system load; uplink cellular systems; Delay; Frequency diversity; Frequency domain analysis; Interference suppression; Laboratories; Multicarrier code division multiple access; OFDM; Radio spectrum management; Resource management; Wireless communication;
Conference_Titel :
Vehicular Technology Conference, 2004. VTC2004-Fall. 2004 IEEE 60th
Print_ISBN :
0-7803-8521-7
DOI :
10.1109/VETECF.2004.1400168
