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In this paper, a multi-group multi-way relaying network is considered. Multiple half-duplex nodes form a group and each node wants to share its message with all other nodes in its group via an intermediate half-duplex relay. The nodes of the whole network are equally distributed over the groups. In this paper, we propose a multicast interference alignment algorithm for a multi-group multi-way relay...
A Multipath Component Distance (MCD) based Automatic Clustering Identification algorithm (ACId-MCD) is introduced to group multipath components (MPCs) obtained from radio channels. Its performance is compared with the K-means MCD algorithm using cluster data simulated with four reference scenarios of the WINNER II channel model. The results indicate that K-means MCD is outperformed for all investigated...
Personal location technologies are becoming important with the rapid development of Mobile Internet services. In Long Term Evolution (LTE) networks, the key problem of user location technology is that different base stations need be synchronized. However, high precision synchronization among different base stations is difficult, especially in indoor environment. In this paper, a new wireless location...
With the rapid development of the mobile wireless system, the operator is experiencing unprecedented challenges on service maintenance and operational expenditure, which drives the demand for realizing automation in current networks. The cell outage detection is considered as an effective way to automatically detect network fault. Our work presents an automated cell outage detection mechanism in which...
Distributed antenna systems (DAS) are studied in order to improve the coverage area of wireless communication systems under transmit power constraint. In order to reduce the computational complexly among clusters, in DAS, it is imperative to control the inter-cluster interference in a decentralized way. In this paper, a distributed power control among clusters for single-user DAS based on Foschini-Miljanic's...
Multicell Cooperative Processing (MCP) has been identified as a key technology to underpin future 4G wireless systems. In MCP enabled systems, the Base Stations (BSs) of the network form groups that jointly process user signals in order to reduce inter-cell interference and boost performance. Although MCP can lead to significant gains, it is also accompanied by overheads that are proportional to the...
The multi-user distributed antenna system (MUDAS) is considered as a promising technology in the future wireless communication. Compared to the multi-user centralized antenna system (CAS), MU-DAS can improve the spectral efficiency significantly. One most attractive feature is that the implementation of the MU-DAS can be reduced by using the clustering approach of the remote antenna units (RAUs)....
Sink mobility has become an increasingly important requirement of various sensor network applications. Handling such mobile sink conditions brings new challenges to large-scale sensor networking. This investigation proposed a hybrid-structure routing protocol (HSRP) that combines the benefits of grid-based and cluster-based structures. Grid-based structure is designed to solve the cluster head selection...
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