Efficient resource management in OFDMA Femto cells
Proceedings of the tenth ACM international symposium on Mobile ad hoc networking and computing
Robust transmission and interference management for femtocells with unreliable network access
IEEE Journal on Selected Areas in Communications - Special issue on cooperative communications in MIMO cellular networks
Self-optimized coverage coordination in femtocell networks
IEEE Transactions on Wireless Communications
FERMI: a femtocell resource management system forinterference mitigation in OFDMA networks
MobiCom '11 Proceedings of the 17th annual international conference on Mobile computing and networking
IEEE Communications Magazine
| Hi-index | 0.00 |
The proliferation of new data intensive devices has caused an enormous burden on wireless systems. A femtocell network is a promising new technology developed to meet these demands. Since each femtocell network consists of uncoordinated subnetworks that work independently, the interference between subnetworks can result in a significant degradation of the overall network capacity. In this paper, we address the interference problem between uncoordinated femtocell access points (FAPs) and propose a distributed FAP scheduling scheme in a densely deployed femtocell network where FAPs interfere with each other. In contrast to previous works that have focused on dynamic power and frequency management, our approach focuses on time sharing through FAP contention. Depending on the outcome of contention, our method selects a winning FAP to be the sole user of the next time frame. The approach operates in a fully distributed manner with help from mobile nodes (MNs). To implement this scheme, we develop a new synchronous frame structure, which uses special common control channels. Through simulations, we observe that the proposed scheme doubles the network capacity compared to the legacy non-contending scheme, and could serve as the basis for future standards on femtocell networks.