A deterministic channel access scheme for multimedia streaming in WiMedia networks

Park, Hyunhee; Kim, Wonjung; Pack, Sangheon

doi:10.1007/s11276-012-0432-5

Cited by 5 publications

(3 citation statements)

References 31 publications

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“…In addition, diverse devices can be connected to each other in a home network. For example, users A and B can enjoy a multi-player video game using their home devices, and user C's movie file can be displayed on a wireless HDTV [3], [4].…”

Section: Introductionmentioning

confidence: 99%

Multiband Directional Neighbor Discovery in Self-Organized mmWave Ad Hoc Networks

Park

Kim

Song

et al. 2015

IEEE Trans. Veh. Technol.

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A 60 GHz radio is an attractive technology in wireless home networks because it can provide high data rate up to a few Gbps. A 60 GHz network generally uses directional antennas and has a problem of neighbor discovery even though it has an advantage of high data transmissions. In particular, if a directional antenna is used in self-organized wireless adhoc networks, the neighbor discovery time and energy consumption can be significantly increased. To solve this problem, we propose a multi-band directional neighbor discovery scheme, in which management procedures are carried out by using the 2.4 GHz band with the omni-directional antennas whereas data transmissions are performed by using the 60 GHz band with directional antennas. Analytical models on the neighbor discovery time and energy consumption are also derived by considering assisted and beamforming periods in the neighbor discovery procedure through the omni-directional antenna and directional antenna. Performance evaluation results demonstrate that the proposed scheme outperforms comparative schemes that use only directional beamforming in terms of the average neighbor discovery time and energy consumption.Index Terms-Directional antennas, mmWave ad-hoc networks, multi-band application, neighbor discovery, selforganization.0018-9545 (c)

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Section: Introductionmentioning

confidence: 99%

Multiband Directional Neighbor Discovery in Self-Organized mmWave Ad Hoc Networks

Park

Kim

Song

et al. 2015

IEEE Trans. Veh. Technol.

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“…In addition, diverse devices can be connected to each other in a home network. For example, users A and B can enjoy a multiplayer video game using their home devices, and user C's movie file can be displayed on a wireless HDTV [3] [4]. MmWave band ranges from 30-300 GHz.…”

Section: Introductionmentioning

confidence: 99%

Neighbor discovery in ad-hoc networks using dual band scheme

Rainy

Nesasudha

2015

2015 2nd International Conference on Electronics and Communication Systems (ICECS)

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The aim of this paper is to reduce the average neigh-bor discovery time and average energy consumption in self organized ad-hoc networks. The rate at which the data is transmitted is high, up to Gbps, in 60 GHz networks. These networks often use directional antenna which provides high data transmissions. But, the disadvantage of using directional antenna is, the average time consumed for discovering the neighbor nodes is high and it also consumes more energy during this process. So, we use Omni directional antenna for discovering neighbors using Wi-Fi band (2.5 GHz or 5 GHz)). To transfer data, mmWave band with directional antenna is used. The results shows that this scheme consumes less time and energy compared to other conventional methods that uses only directional beamforming.Keywords-Directional antenna, neighbor discovery, 60GHz network, mmWave band.I.

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“…Most of the wireless networks (i.e., IEEE 802.11 series, 802.15.3 series, and WiMedia MAC) can support multiple transmission rate by adaptively choosing the most appropriate modulation under the current channel conditions [4][5][6]. For instance, IEEE 802.11a/b wireless local area networks (WLANs) provide diverse transmission rates depending on the distance between source and destination nodes (i.e., 1 Mbps at 100 m, 2 Mbps at 74.7 m, and 11 Mbps at 48.2 m) [7]. The rate adaptive mechanisms by diverse PHY modulations have been studied based on request to send (RTS) and clear to send (CTS) for IEEE 802.11 WLANs.…”

Section: Introductionmentioning

confidence: 99%

Distributed Relay-Assisted Retransmission Scheme for Wireless Home Networks

Park

Kim

2014

International Journal of Distributed Sensor Networks

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A relay transmission is a promising technology to improve network performance in dynamic infrastructure. In this paper, we propose a distributed relay-assisted retransmission (DRR) scheme in multirate wireless home networks. The idea is to exploit overhearing nodes to retransmit on behalf of sender node after receiving the block acknowledgement (B-ACK) from destination node. For the first transmission, a basic relay (BR) node is used by considering the high data rate between source node and BR node. And then, for the retransmission, a retransmission relay (RR) node is used by considering the high data rate between RR node and destination node. The DRR scheme extends a distributed reservation protocol in WiMedia home networks and inquires the candidate relay node as BR nodes and RR nodes during beacon period. In addition, the DRR scheme can minimize control overhead for relay transmission because all nodes should send and listen to the beacon frames of neighbor nodes during beacon period. We also present the relay decision scheme and channel allocation procedure for maximizing the efficiency in the DRR scheme. Extensive simulation results demonstrate that the DRR scheme can improve the overall throughput by 40% and reduce the energy consumption by 47% compared with nonrelay transmission schemes when the number of nodes increases.

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A deterministic channel access scheme for multimedia streaming in WiMedia networks

Cited by 5 publications

References 31 publications

Multiband Directional Neighbor Discovery in Self-Organized mmWave Ad Hoc Networks

Multiband Directional Neighbor Discovery in Self-Organized mmWave Ad Hoc Networks

Neighbor discovery in ad-hoc networks using dual band scheme

Distributed Relay-Assisted Retransmission Scheme for Wireless Home Networks

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