Title :
MIMO Joint Detection with Enhanced Physical Layer Security
Author :
Yejian Chen ; Xin Yu
Author_Institution :
Bell Labs., Alcatel-Lucent, Stuttgart, Germany
Abstract :
In this paper, we present a downlink multiuser Multiple-Input Multiple-Output (MIMO) joint detection scheme with secure physical layer. Within a data block, an arbitrary user´s Quadrature Amplitude Modulation (QAM) modulated signal is protected by the pseudo-randomly defined scrambling codes, in order to prevent the other users from eavesdropping the whole Forward Error Correction (FEC) block. We can adjust the density of scrambling codes in the data block, to balance the trade-off between the improved physical layer security and the slight loss of sum rate. Finally, we analyze the Bit Error Ratio (BER) performance and provide the corresponding union bound. We also present the achievable rate of the proposed scheme by Monte Carlo simulation.
Keywords :
MIMO communication; Monte Carlo methods; error statistics; forward error correction; quadrature amplitude modulation; radio links; telecommunication security; BER performance; FEC block; MIMO joint detection scheme; Monte Carlo simulation; QAM modulated signal; bit error ratio; data block; downlink multiuser multiple-input multiple-output; enhanced physical layer security; forward error correction; physical layer security; quadrature amplitude modulation; scrambling codes; Bit error rate; Distributed processing; Joints; MIMO; Physical layer; Security; Signal to noise ratio;
Conference_Titel :
Vehicular Technology Conference (VTC Fall), 2013 IEEE 78th
Conference_Location :
Las Vegas, NV
DOI :
10.1109/VTCFall.2013.6692282
