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In this paper, the spread-spectrum binary countdown scheme with generalized modified prime sequence codes (GMPSC) is considered as the MAC protocol in the multi-hop network. We focus on the code division multiple access (CDMA) based relay network using binary countdown scheme with GMPSC. The packet success rate and the throughput of binary countdown scheme with GMPSC are evaluated by taking into account...
The binary countdown scheme has been investigated as the MAC protocol in the multi-hop network. However, since the conventional binary countdown scheme has the hidden terminal problem, the packet success rate and the throughput are low. In this paper, in order to solve these problems, a novel binary countdown scheme which combines the relaying system with the spread spectrum communication system is...
A new selection method for the modified binary countdown scheme is proposed in this paper to make more effective use of VANET. The modified binary countdown scheme is fused with the binary countdown and slot distributed schemes. In the selection method, the transmission right of each node is kept equal because the node which transmitted a packet correctly chooses the low priority code. As the results...
In this paper, the wireless butterfly-typed network coding scheme is considered. The average packet acquisition time of the wireless network coding scheme is evaluated by theoretical analysis. The effect of the wireless network coding scheme is shown by comparing with the system without network coding scheme. Consequently, it is shown that the wireless network coding scheme is superior to the system...
The Mobile Ad-Hoc Network (MANET) system is focused in the wide-scale disaster, the fire disaster, etc. In these system using MANET, the performance of the media access control scheme is important. The information of these system include the high-priority data and the low-priority data. In this paper, the modified binary countdown scheme considering the priority of packet. By changing the priority...
To design and evaluate the media access control scheme is important for the vehicular ad-hoc network (VANET) systems. As MAC scheme, the modified binary countdown scheme is considered. However, this scheme is not analyzed in theory. In this paper, the average packet acquisition time of the basic modified binary countdown scheme is evaluated by the theoretical analysis. Compared with the results of...
In the Intelligent Transport System (ITS), the vehicular ad hoc network (VANET) system is focused. In VANET, to construct the media access control (MAC) scheme is important. In this paper, the modified binary countdown scheme is proposed as MAC protocol. This scheme is introduced the modified binary countdown scheme to the slotted ALOHA-based scheme. In this scheme, the transmission frame is divided...
This paper is focused on the packet compensation protocol using Spread-Spectrum (SS) techniques for the road to vehicle broadcasting system. The SS slot-distributed push-type packet compensation protocol is proposed. Moreover, the average packet acquisition time and the average transmission power for compensating a lost packet are evaluated by the theoretical analysis and the computer simulation....
The purpose of this paper is to evaluate performance of the pull-type packet compensation protocol with common spreading sequences by theoretical analysis. This protocol is the loss packet compensation scheme for broadcasting services using road to vehicle communications (RVC). In this paper, the blocking probability, the average time to complete compensation and the average number of packet transmissions...
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