… the burstsparse structure in the angular domain of the physical channels in massive MIMO
… Inspired by this, recent studies exploited the sparsity of the massive MIMO channel [19], [20] …

… This feature which is well-known as angular-sparsity in the massive MIMO … burst and
individual support in the channel matrix, a generic and but yet more complex massive MIMO …

… Time-Varying Massive MIMO Channel Model We consider a single-cell massive MIMO-OTFS …
Dai, “Exploiting burst-sparsity in massive MIMO with partial channel support information,” …

… double sparsity. As a matter of fact, the idea of using either the delay-domain sparsity or the
double sparsity … Dai, “Exploiting burst-sparsity in massive MIMO with partial channel support …

… massive multiple input multiple output (MIMO) systems using a Bayesian compressive
sensing (BCS) approach. BCS exploits the sparse … the massive MIMO channel has a block-sparse …

… , common sparse structure [11], [19], burst sparse … sparse angular reciprocity between the
downlink and uplink channels is another sophisticated structure sparsity of the massive MIMO …

… that the wideband massive MIMO channel can be represented by a vector that is not simply
sparse but has well defined structural properties, referred to as hierarchical sparsity, we …

… -uniform burst sparsity… massive MIMO channel which has a clustered sparse structure in the
angular domain as shown in [20], [21]. To this end, as in [18], [19], we assume that the sparse …

… The sparse property of downlink massive MIMO channel in angular domain is analyzed …
channel exhibits two kinds of sparse structures, namely the joint sparsity and burst sparsity. …

… • The decoupling pilot design scheme: By exploiting joint sparsity in the delay-angle domain
of massive MIMO systems, we propose a decoupling pilot design scheme with low overhead …