Capacity of Mc-cdma Mimo with Imperfect Interference Cancellation
نویسندگان
چکیده
Multi-carrier code division multiple access (MC-CDMA) is an attractive multiple access technique. For achieving a very high speed data transmission with a limited bandwidth, MCCDMA can be jointly used with multiple-input multipleoutput (MIMO) multiplexing. Among many signal detection methods, an iterative interference cancellation technique can be used. The presence of residual interference limits the performance improvement. In this paper, we consider the minimum mean squared error detection (MMSED) with imperfect cancellation of inter-code interference (ICI) and inter-antenna interference (IAI) and derive the capacity expression by taking into account the degrees of residual ICI and IAI. Then, we discuss how the imperfect interference cancellation impacts the achievable capacity of MC-CDMA MIMO.
منابع مشابه
The 11th International Symposium on Wireless Personal Multimedia Communications (WPMC 2008) APPROXIMATE CHANNEL CAPACITY OF MC-CDMA MIMO
Multi-carrier code division multiple access (MC-CDMA) is a promising multiple access scheme. An extremely high spectrum efficient transmission technique is required in future wireless communication systems. The use of multiple-input multiple-output (MIMO) space division multiplexing (SDM) is essential to achieve a very high speed data transmission with a limited bandwidth. In this paper, we der...
متن کاملChannel Capacity of MC-CDMA and Impact of Residual ICI
Orthogonal frequency division multiplexing (OFDM), which uses a number of narrowband orthogonal sub-carriers, is a promising transmission technique. Also multi-carrier code division multi-access (MC-CDMA), which combines OFDM and frequency-domain spreading, has been attracting much attention as a future broadband wireless access. It was shown that MC-CDMA has lower channel capacity than OFDM, d...
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 کاملBlind Adaptive Successive Interference Cancellation for Multicarrier DS-CDMA
A new adaptive receiver design for the Multicarrier (MC) DS-CDMA is proposed employing successive interference cancellation (SIC) architecture. One of the main problems limiting the performance of SIC in MC DS-CDMA is the imperfect estimation of multiple access interference (MAI), and hence, the limited frequency diversity gain achieved in multipath fading channels. In this paper, we design a b...
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 کامل