Base Station Association Game in Multi-Cell Wireless Networks (Special Paper)

Coordinated Scheduling and Power Control in Cloud-Radio Access Networks

“…From Lemma 4, we have w(s * j ) ≥ w(v), ∀v ∈ R(s * j ). The vertex generated v * by the algorithm is the optimal solution to (14), thus w(v * ) ≥ w(v), ∀v ∈ R(s * j ). Therefore, we obtain w(v * ) ≥ w(s * j ) but S * is the optimal solution then w(s * j ) = w(v * ).…”

“…To further account for the power optimization step, papers [14]- [16] consider updating the power in an outer step, i.e., for fixed scheduling. The authors in [17] present an alternative strategy which uses a dynamic interference avoidance scheme to mitigate excessive inter-cell interference.…”

“…This number can be computed as U P B . For each vertex, the optimization problem (14) is run once to calculate the optimal power level. Hence, the complexity of creating a cluster is U P B Zc(B).…”

Proactive user association in wireless small cell networks via collaborative filtering

“…While most solution concepts for matching games, such as [6], [7], [18], assume that the preferences of a player do not depend on the other players' choices, this assumption does not hold for the considered UE-SBS association problem. As a matter of fact, when dealing with externalities, the potential link (i, m) between an SBS i and a UE m depends on the other UE-SBS associations in η \ (i, m).…”

“…In fact, the small cell scenario significantly differs from traditional macro-cellular networks due to the density of SBSs, heterogeneity (disparate coverage areas and cell sizes), and unbalanced resource availability [3][4][5]. These distinct features make macrocell-oriented user association techniques as in [2], [6], [7] unsuitable to the topology of small cell networks, notably when stringent QoS constraints are required. One promising approach for addressing the cell association problem is through the exploration of additional context information extracted from the user's devices that can include data such as the typical set of active applications [8].…”