Frequency Domain Interference Cancellation for Single Carrier Cyclic Prefix Cdma Systems
نویسندگان
چکیده
In this paper, we propose a low complexity receiver structure for Single-input Multiple-output (SIMO) downlink cyclic prefix CDMA (CP-CDMA) systems. It employs an interference cancellation scheme to suppress the interference caused by the multipath fading channel. Also, the proposed scheme is developed for Multiple-input Multiple-output (MIMO) CP-CDMA system. All filters in the proposed receiver are implemented in the frequency domain. The performance of the proposed receiver is studied and compared. Our results show a large performance improvement when using such an interference cancellation scheme relative to the rake receiver, and frequency domain Equalization (FDE).
منابع مشابه
Performance of Cyclic Prefix Assisted Single Carrier CDMA Uplink System with MIMO Multiplexing
In this paper, we describe a novel type of cyclic prefix assisted single carrier CDMA system with Frequency Domain Equalization (FDE) and MIMO Multiplexing. The proposed method is referred to as MIMO SC/FDE CDMA. Multipath Interference can be mitigated by inserting cyclic prefix at the transmitter. Furthermore, we use different scrambling codes to separate different transmit antennas. At the re...
متن کاملFrequency Domain Soft-Decision Feedback Equalization for SC-FDMA with Insufficient Cyclic Prefix
Single-carrier frequency-division multiple access (SC-FDMA) system suffers performance degradation when the length of the cyclic prefix (CP) is less than the channel delay spread. In this paper, based on MMSE criterion, we proposed an efficient frequency domain soft-decision feedback equalization (FDSDFE) scheme for SC-FDMA system. The proposed scheme employs residual inter-symbols cancellation...
متن کاملThroughput Performance of Multicode DS-CDMA And MC-CDMA MIMO Multiplexing Using CDP-CE And Iterative Frequency-domain Interference Cancellation
Abstract In multiple-input multiple-output (MIMO) multiplexing, a superposition of data blocks transmitted from different transmit antennas using the same carrier frequency is received. In a frequency-selective channel, joint use of frequency-domain equalization (FDE) and signal detection of parallel transmitted signals is essential. Recently, we proposed an iterative frequency-domain interfere...
متن کاملComparison between MC-CDMA and CDMA- OFDM/OQAM systems in presence of MIMO channel
In this paper, we present a comparison between MCCDMA and CDMA-OFDM/OQAM systems in the case of MIMO channel. The advanced Multi Carrier CDMA OFDM/OQAM modulation is a combination of CDMA and OFDM/OQAM. This combination takes advantages from multicarrier modulation and spread spectrum. Indeed, the use of OFDM has proved its ability to fight against frequency selective channels but the insertion...
متن کاملEvaluation of BER in CDMA with Parallel Interference Cancellation
In this paper, we present the performance of a parallel interference cancellation (PIC) scheme in Code division multiple access with cyclic prefix (CP-CDMA) systems and proposed a new model for cyclic prefix code division multiple access with less complexity and good resistance to near-far effect. This method is mostly used for broadband wireless communication in the uplink. Parallel interferen...
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 2008