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Physical layer network coding (PNC) has recently attracted attention in wireless relay system. With PNC, the destructive effect of interference in wireless networks can be eliminated and the capacity of networks can be boosted significantly. However, synchronization is always considered as an outstanding issue which causes performance penalty on PNC. In [7], the impact of imperfect synchronization...
In this paper, a generalized eigenvalue based detector is presented for detecting primary signals in cognitive radio systems with multiple antennas. Exploiting the characteristic of generalized Rayleigh quotient, the proposed algorithm has a better performance over the uniformly most powerful invariant (UMPI) detector. On the other hand, the proposed algorithm has quite well performance with correlated...
Enhanced Multimedia Broadcast/Multicast Service (eMBMS) is a new function defined in 3GPP specification to support PTMP (point to multiple points) transmission in LTE networks. In order to improve reliability, two mechanisms are implemented in single-cell eMBMS: (1) Raptor is implemented at the eBMSC (Enhanced Broadcast/Multicast Service Center) to provide packet-level protection; (2) HARQ is used...
Enhanced Multimedia Broadcast/Multicast Service (eMBMS) is a new function defined in 3GPP Release 8 specification, which supports download delivery and streaming delivery to group users in LTE mobile networks. For download delivery, there are two mechanisms implemented in different entities to improve reliability: (1) At eBMSC (Enhanced Broadcast/Multicast Service Center), Raptor code is implemented...
This work provides analytical results on the canonical correlation analysis (CCA) of data sets from two spatially separated arrays of sensors. Our case studies cover both single source and multiple source signals in either white or colored noise fields for array signal processing. We derive analytical expressions of the canonical correlation for these examples and present a computer simulation analysis...
This work studies the performance of a data-driven reduced rank scheme for rapid timing acquisition in multiple access communications. Our results show that when only a limited amount of preamble bits are available, instead of the true second-order statistics (SOS), the reduced rank scheme provides reliable timing information. Exploiting the structure of the multiple access interference, the data...
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