… by judiciously designing the downlink channel training sequences and user … channel
correlation. We compare our achievable rates with TDD massive MIMO systems, iid FDD systems, …

… that channel aging severely affects both channel estimation and achievable rates in an FDD
massive MIMO system. … and downlink channels, 0 ≤ ρ[n] ≤ 1 is the correlation between the …

… A variety of methods have been proposed to solve this dilemma, such as channel
correlations in the spatial domain reflected in second-order statistics [4], [5], compression of the …

… of the anglebased channel in FDD Massive MIMO systems driven by our channel dataset: the
… Inspired by the two main results on dominant angle cardinality and FDD angle correlation, …

… property of the massive MIMO channel matrix caused by correlation among users, the joint
… By generalizing the downlink channels in FDD massive MIMO systems to follow Gaussian …

… the correlated nature of the massive MIMO channel [10], [11]. … channel estimation scheme
for FDD massive MIMO systems, … is that even though the channel statistics change with time, …

… massive MIMO channel estimation have resorted to the channel statistics, eg, channel correlation
or channel … 7] as well as the high correlation between compact antenna elements make …

… correlated MIMO channel … in FDD m-MIMO systems also constitutes an important topic which
however goes beyond the scope of this paper. Recent results leverage channel correlations …

… For some special channel cases, we provide the optimal … allocation in FDD massive MIMO
system are extracted. … the massive MIMO FDD system in spatially correlated channel and put …

… channel covariance matrix. Covariance-aided pilot design was also considered in [17], [18]
for FDD massive MIMO systems… correlation as well as the temporal correlation of the channel. …