An efficient joint channel assignment and QoS routing protocol for IEEE 802.11 multi-radio multi-channel wireless mesh networks

Peng, Yuhuai; Yao, Yu; Guo, Lei; Jiang, Dingde; Gai, Qiming

doi:10.1016/j.jnca.2012.11.003

Cited by 57 publications

(50 citation statements)

References 23 publications

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“…Assume that, all nodes are transmitting with the same transmission power t x and the carrier sensing range is twice that of transmission range (R cs = 2 ×R t ). Two nodes i, j are connected if their Euclidean distance dist (i, j) ≤ R t and nodes are operating on a common channel k. Each link between i and j is symbolized by 2 directed links (l (1,2) and l (2,1) as shown in Fig. 1).…”

Section: Network Modelmentioning

confidence: 99%

“…4, the nodes 2 and 3 are equipped with 2 radio interface each, and are connected with a common channel 1 as K = {1, 6, 11}. The value of the link channel assignment binary variable X 1 l (2,3) is equal to 1 as the nodes 2 and 3 operate on exactly one common frequency channel i.e., 1. On the other hand, the values of link channel assignment binary variables X 6 l (2,3) and X 11 l (2,3) are equal to zero.…”

Section: I-jca Model Formulationmentioning

confidence: 99%

“…where l (i, j) and l (m,n) are different links operating on channel k Consider a target link l (1,2) as shown in Fig. 4, suppose that l (2,3) , l (3,4) , and l (10,11) are sender connected interfering links with reference to the target link l (1,2) .…”

Section: I-jca Model Formulationmentioning

confidence: 99%

“…4, suppose that l (2,3) , l (3,4) , and l (10,11) are sender connected interfering links with reference to the target link l (1,2) . According to this constraint, these links can be operated on a common frequency channel (let k = 6) without interfering with each other.…”

Section: I-jca Model Formulationmentioning

confidence: 99%

“…Notably, these networks support high-speed Internet access, Voice over IP (VoIP), video over IP, and other real-time multimedia services in community networks, military communications, disaster relief, and temporary communications with a high level of Quality of Service (QoS) [2,3]. Furthermore, WMN provides a low-cost promising solution towards ubiquitous computing, Internet of Things (IoT), and Real-Time Locating Systems [4,5].…”

Section: Introductionmentioning

confidence: 99%

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Optimized interference aware joint channel assignment model for wireless mesh network

Ali

Ngadi

2015

Telecommun Syst

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In this paper, linear optimization is used to model the interference aware joint channel assignment problem in Wireless Mesh Networks. The model selects the channels for the interfering links such that interference is minimized, overall throughput of the network is maximized, and network capacity is fairly distributed among the interfering links. The interference is minimized by classifying the interfering links into four different classes depending upon the geometric location of the sender and receiver of a link (i.e., Sender Connected, Asymmetric Incomplete State, Symmetric Incomplete State, and Far Hidden interfering links). Further, the classes of interfering links are assigned with distinct channels through optimized spectral re-usability of joint channels available in 2.4 GHz ISM band. As a result, it increases the simultaneous transmissions among the interfering links which in turn increases the aggregate throughput of the network while ensuring that capacity is fairly distributed among the interfering links. Numerical results indicated that joint channel assignment model has achieved better performance than non-overlapping channel assignment models. Hence, this validates the model, which can serve as a benchmark in the design and deployment of wireless mesh networks.

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Section: Network Modelmentioning

confidence: 99%

Section: I-jca Model Formulationmentioning

confidence: 99%

Section: I-jca Model Formulationmentioning

confidence: 99%

Section: I-jca Model Formulationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Optimized interference aware joint channel assignment model for wireless mesh network

Ali

Ngadi

2015

Telecommun Syst

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An end‐to‐end channel allocation scheme for a wireless mesh network

Tsao

Huang

et al. 2013

Int J Communication

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SUMMARYCo-channel interference seriously influences the throughput of a wireless mesh network. This study proposes an end-to-end channel allocation scheme (EECAS) that extends the radio-frequency-slot method to minimize co-channel interference. The EECAS first separates the transmission and reception of packets into two channels. This scheme can then classify the state of each radio-frequency-slot as transmitting, receiving, interfered, free, or parity. A node that initiates a communication session with a quality of service requirement can propagate a channel allocation request along the communication path to the destination. By checking the channel state, the EECAS can determine feasible radio-frequency-slot allocations for the end-to-end path. The simulation results in this study demonstrate that the proposed approach performs well in intra-mesh and inter-mesh communications, and it outperforms previous channel allocation schemes in end-to-end throughput.

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High‐capacity soliton transmission for indoor and outdoor communications using integrated ring resonators

Amiri

Alavi

Ali

2013

Int J Communication

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SUMMARYA system consisting of a series of microring resonators, incorporating an add/drop system, is presented in order to create ultra‐short spatial and temporal single and multisoliton pulses, which can be used for indoor and outdoor optical communications. Chaotic noise can be generated by a bright soliton pulse propagating inside a nonlinear microring resonator system. The results obtained show that a single temporal and spatial soliton pulse, with full width at half maximums of 75 fs, 80 fs, 700 fs, 4.4 ps, and 0.30 nm, can be generated. The add/drop system can be used to generate a high number of ultra‐short soliton pulses in the ranges of nanometer/second and picometer/second. The simulated multisolitons have full width at half maximums of 16 ps, 20 pm, 130 ps, and 35 pm and free spectrum ranges of 500 ps, 0.57 nm, 3.5 ns, and 1.4 nm, respectively. The multisolitons generated at the drop port can be used in indoor optical communications, where the ultra‐short pulses with a variety of central wavelengths (from λ = 1550 to λ = 1560) from the through port can be multiplexed‐demultiplexed along an optical fiber with a length of 50 km. The filtered signals can be obtained at the end of the transmission link used for optical outdoor communications. Copyright © 2013 John Wiley & Sons, Ltd.

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An efficient joint channel assignment and QoS routing protocol for IEEE 802.11 multi-radio multi-channel wireless mesh networks

Cited by 57 publications

References 23 publications

Optimized interference aware joint channel assignment model for wireless mesh network

Optimized interference aware joint channel assignment model for wireless mesh network

An end‐to‐end channel allocation scheme for a wireless mesh network

High‐capacity soliton transmission for indoor and outdoor communications using integrated ring resonators

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