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The data scale in many data centers is growing explosively with emerging applications and usages of big data technologies. Data distribution is a key issue in large-scale distributed storage systems to place petabytes of data or even beyond, among tens or hundreds of thousands of storage devices. In the meantime, heterogeneous storage systems, such as those having devices with hard disk drives (HDDs)...
Cooperative multicast can allow the source to transmit at a higher rate by exploiting spatial diversity. In this paper, we give a two-phase cooperative multicast strategy in which multiple destinations retransmit data simultaneously. Power consumption is controlled by limiting the max number of cooperative terminals. Optimal time allocation of the two phases for maximum system throughput is analyzed.
In wireless communication, it is enough to transmit the same information only once to reach a group of users due to the broadcast nature of wireless media. However, some users may fail to receive as a result of channel fading and etc. Cooperative communication can make use of space diversity to enhance communication quality. In this paper, we proposed a novel cooperative routing strategy for wireless...
Wireless multicast can exploit broadcast nature of wireless communication. It is sufficient to transmit information only once to reach a group of users. But some users may fail to receive it due to channel fading etc. Thus, we have to find a proper threshold of scheduling and retransmit in order to reduce the packet loss. In this paper, the multicast scheduling problem with packet loss and delay constraints...
Wireless multicast can exploit both multiuser diversity and broadcast gain together simultaneously, which are the special virtues of wireless communication. However, we have to adopt appropriate tradeoff between multiuser diversity gain and broadcast gain in order to achieve optimal system throughput. This paper studied the problem of wireless multicast scheduling, and proposed a static optimal wireless...
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