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To enjoy rich Internet services, contemporary mobile devices generate heavy loads of computation tasks, which cannot be suffered locally due to the limited computing and energy capacities of each device. Cloud radio access network (Cloud RNA) based heterogeneous structure is widely accepted as a promising way to make up devices' shortage and computation need. To determine whether the computation task...
Despite the advantages of deploying femtocells into cellular networks, the consequent cross-tier interference has seriously limited the network performance. Applying different power control techniques has been heavily discussed in 3GPP as an efficient approach for handling dominant interference scenarios. Instead of relying on system level simulations, this paper evaluates an analytical uplink power...
With heterogeneous network developing, eICIC technology is widely considered and developed. eICIC is introduced to address the problem of downlink interference in HetNet. In the traditional eICIC, some pico users are scheduled in the protected subframe (referred to as almost blank subframe ABS) in which macrocell stops scheduling users. This causes serious loss of the cell throughput which ABS is...
As conventional single-layered network cannot satisfy the increasing demand in high-speed indoor data service, femtocell has been introduced to provide higher network capacity and better user experience. However, the downlink transmit signal from femtocell base station (FBS) may result in severe cross-tier interference to macrocell users (MUE). To address this problem, we propose a dynamic femtocell...
With continuously development of the ad hoc network technology, integrating with other networks becomes one of the trends. Due to the involvement of other networks, routing strategy needs to change with the development. To considerate the key factors whose influence are serious comprehensively is needed. For those reasons, this paper proposes a novel concept of the optimal routing function, which...
In OFDMA system, inter-cell interference (ICI) and multi-service requirement are challenging problems. Previous cell-level schemes ignored different QoS requirement of multi-service. Meanwhile, most of them only considered complex cell edge part separation but simplified cell inner part allocation to eliminate ICI, but refined inner part allocation could eliminate ICI effectively. To solve this problem,...
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