Youjia Chen

TL;DR: The proposed distributed BP algorithm has a near-optimal delay performance, approaching that of the high-complexity exhaustive search method; the modified BP offers a good delay performance at low communication complexity; both the average degree distribution and the outage upper bound analysis relying on stochastic geometry match well with the authors' Monte-Carlo simulations.

TL;DR: This paper studies a probabilistic small-cell caching strategy, where each SBS caches a subset of contents with a specific caching probability, and derives theoretical results of this successful download probability (SDP) using stochastic geometry theory.

TL;DR: In this article, a distributed caching optimization algorithm via belief propagation (BP) for minimizing the downloading latency is proposed, where the authors derive the delay minimization objective function and formulate an optimization problem.

TL;DR: This paper proposes a novel belief propagation (BP) algorithm to jointly optimize user association, subchannel assignment, and power allocation in heterogeneous cellular networks with randomly deployed small-cell base stations.

TL;DR: This paper develops a factor graph model, using the network topology, and proposes a novel distributed BP algorithm, which theoretically proves the existence of the fixed point in the BP algorithm.