Study on Minimum Contention Window Size Adjustment Algorithm Based on Neighbor Nodes Number Estimation in Vehicular Ad Hoc Network by Dapeng Li, Tao Yuan, Haitao Zhao

“…In order to solve the periodic broadcast scalability of IEEE 802.11p-based VANET on control channel, a minimum contention window adjustment algorithm based on neighbor nodes number estimation was proposed. …”
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Overview of Internet of vehicles for 5G by Liang-min WANG, Xiao-long LIU, Chun-xiao LI, Jing YANG, Wei-dong YANG

“…The functions and characteristics of current IOV(Internet of vehicles) Internet of vehicles were analyzed.Moreover,combined with 5G communication technology,the architecture of IOV for 5G was proposed to imple-ment access and integration of multi-network.Different from the IEEE 802.11p based architecture of VANET,de-vice-to-device (D2D) technology was introduced to achieve flexible terminals communication of IOV.In comparing with VANET based on IEEE 802.11p in terms of key technology parameters,the IOV for 5G possesses the better characteristics in terms of low latency and efficient spectrum utilization,and also need to face new interference management and security challenges.At the end,the application and development trends of IOV for 5G in the busi-ness and the specific environment were prospected.…”
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Performance Analysis for Priority-Based Broadcast in Vehicular Networks by Rinara Woo, Jung-Hoon Song, Dong Seog Han

“…Transportation safety is one of the most important applications of vehicular ad hoc networks which is based on IEEE 802.11p. When a vehicle is in an emergency situation, a safety-related message is transmitted to the neighboring vehicles and infrastructures. …”
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WiFi and WiMAX Secure Deployments by Panagiotis Trimintzios, George Georgiou

“…We thoroughly present the security mechanisms along with a threat analysis for both IEEE 802.11 and the 802.16 as well as their amendments. …”
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A Distance-Aware Safety-Related Message Broadcasting Algorithm for Vehicular Networks by Xiaohuan Li, Bin-jie Hu, Hongbin Chen, Jin Ye

“…A new distance-aware broadcasting algorithm was proposed to enhance the propagation distance in the latency time of safety-related message broadcasting. The IEEE 802.11p standard states that if the medium is detected as idle, a station would defer its transmission within a backoff time to avoid collisions with other stations. …”
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Wireless Catching and Transferring System of Next Generation Network by Huiqiu Li, Qin Chen, Xiaozheng Ning, Jian Huang, Zhide Li, Xuedan Zhang, Yuhan Dong

“…With the advanced technology of IPv6, IEEE 802.11n and cloud computing, the system provided an effective solution, meeting the needs of professional journalists to catch and transfer quickly at large games and meetings.…”
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Hybrid wireless mesh protocol by YANG Kai1, MA Jian-feng1

“…Hybrid wireless mesh protocol（HWMP）, the default routing protocol of IEEE 802.11s, was described.HWMP provided two routing modes:on-demand and proactive.An efficient cooperation method of the two routing modes was proposed.It was implemented and its performance was evaluated.The experimental results show that HWMP has lower average latency and higher data transmission throughput compared with ad-hoc on demand distance vector routing（AODV）.…”
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Multi-channel based on power control protocol for mobile ad hoc networks by LI Dong-sheng, XIANG Yong, SHI Mei-lin

“…To solve the collision problem brought by power control in mobile ad-hoc network（MANET）,multi-channel MAC protocol and on-demand minimum energy routing protocol were employed,to carry out a multi-channel based power control ad hoc network,MCBPC.This architecture controlled the frequent changes of topology,decreased the probability of contact brought by power control,and achieved the goal of energy conservation.Simulation results indicate that compared with AODV@IEEE 802.11 approaches,the proposed MCBPC solution achieves about 90% increase in the throughput and network lifetime,and 30% increase in the packet delivery ratio.…”
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Multi-user coordination technology by Jiaojiao WANG, Zhen SHAO, Guojin HUANG

“…Wi-Fi 6 was the new name of IEEE 802.11ax by the Wi-Fi Alliance to facilitate the promotion of new Wi-Fi technology.Wi-Fi 6 technology focused on improving multi-user performance and efficiency in dense deployment scenario.Introducing OFDMA, UL MU-MIMO and other multi-user collaboration technologies, greatly increases system capacity and reduces transmission delay.The principles of OFDMA, MU-MIMO, MU-RTS/CTS technologies were described, the communication process in multi-user scenario was introduced in detail, and the UL and DL simultaneous user numbers of Wi-Fi 6 were analyzed in theory.Finally, the application potential of Wi-Fi 6 were discussed.…”
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Effective frame transmitting mechanism for improving the network throughput by WU Da-peng, WU Mu-qing, ZHEN Yan

“…The limited radio resource can be used reasonably by the frame transmitting mechanism well designed.Based on the analysis on the normalize throughput of IEEE 802.11 wireless LAN,combining adaptive contention window and random varying timing method,a simple and effect frame transmitting mechanism was proposed.Actively,the dynamical varying timing method adjusts the number of packets sending to queue;moreover,the adaptive contention window scheme determines the size of contention window based on the collision status rapidly.The simulations show that the mechanism is able to optimize the parameters of packets sending out,and network throughput can be improved 30 per-cent,consequently,the radio resource is utilized more reasonably.…”
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Using idle TDMA slots for retransmitting packets cooperatively in VANET by Zhen CHEN, Jiang-hong HAN, Yong YANG, Zheng-yu LIU, Yang LU

“…The distributed TDMA approach for VANET dose not take advantage of idle slots,failing to effectively utilize radio resources.A retransmission method for medium access control was proposed for utilizing idle slots.In the method,neighboring nodes utilized idle slots for retransmitting a packet which failed to reach the target receiver.Theoretical analysis and simulation results show that the proposed method significantly increases the probability of successful packet transmission and the network throughput.In addition,a comparison between the proposed method and IEEE 802.11p was presented via extensive simulation,and the results prove that,due to its ability to access channel determinately,the method can disseminate real-time safety information timely and stably.…”
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60 GHz Modular Antenna Array Link Budget Estimation with WiGig Baseband and Millimeter-Wave Specific Attenuation by Joongheon Kim, Liang Xian, Ali S. Sadri

“…This paper provides practical 60 GHz link budget estimation results with IEEE 802.11ad standard-defined parameters and 60 GHz specific attenuation factors. …”
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A Trust Value-Based Spectrum Allocation Algorithm in CWSNs by Qing-Qi Pei, Zi Li, Li-Chuan Ma

“…CWSN devotes itself to the solution of spectrum sharing in forms of networks, such as IEEE 802.11 and Bluetooth. A new algorithm is proposed for allocating the idle spectrum to secondary users (SUs). …”
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Studi Empiris terhadap Kinerja & Keamanan Wifi (Studi Kasus di Kota Depok) by Ahmad Fajri

“…Oleh karena itu penilaian kinerja dan keamanan jaringan wifi di Kota Depok dinilai sudah baik sesuai dengan standar IEEE 802.11i yaitu tentang peningkatan pengamanan pada jaringan Wifi menggunakan WPA2 dan 802.11b tentang pengaturan channel wifi yang tidak menimbulkan interferensi. …”
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Ultrawideband Vivaldi Antenna for DVB-T, WLAN, and WiMAX Applications by Dalia M. Elsheakh, Esmat A. Abdallah

“…This antenna is suitable for portable DVB-T which extended from 450 MHz to 850 MHz receiver applications and the WLAN (Wireless Local Area Network) IEEE 802.11b,g (5.1–5.8) GHz frequency bands and WiMAX band (3.3–3.8) GHz. …”
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Distortion-Based Slice Level Prioritization for Real-Time Video over QoS-Enabled Wireless Networks by Ismail A. Ali, Martin Fleury, Mohammed Ghanbari

“…The proposed scheme is demonstrated for an IEEE 802.11e quality-of-service- (QoS-) enabled wireless LAN. …”
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A Scalable MAC Protocol Supporting Simple Multimedia Traffic QoS in WSNs by JeongSeok On, HahnEarl Jeon, Jaiyong Lee

“…Using this algorithm, the proposed MAC protocol outperforms the IEEE 802.11e EDCF and the IEEE 802.15.4 MAC protocol in terms of the end-to-end delay and stable transmission of multimedia streaming data.…”
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Pilot Position Optimization Design of WLAN System Based on Experiment by Jue Lan, Yunzhou Li, Xin Su, Shidong Zhou

“…Considering the frame structure of IEEE 802.11ac with “leading preamble plus comb-like pilot”，the performance evaluation formula of the correction scheme based on maximum likelihood estimation was derived，according to which the effect of pilot location，channel fading and subcarrier correlation was studied.Furthermore，a signalling exchange method was proposed，which ensured pilot position synchronization on both end，and a low complexity algorithm of pilot optimization according to the frequency channel amplitude information.In this way，the pilot overhead can be reduced without loss of correction performance.The experiment and simulation result shows that for ideal Rayleigh channel data，correction performance improves by 1.85 dB and 7.15 dB for unknown channel amplitude information in frequency domain and known cases respectively.For field experiment channel data，correction performance improves by 1.67 dB and 2.68 dB respectively.…”
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Research on Distributed Wireless Multi-Step Attack Pattern Mining Method for WLAN by Guanlin Chen, Zebing Wang, Yong Zhang

“…A distributed wireless multi-step attack pattern mining（DWMAPM）method based on correlation analysis with the IEEE 802.11 protocol frame attributes was proposed. …”
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A Space Efficient Circular Patch MIMO Antenna Having Six Degrees of Freedom for 5G-n79/WLAN Applications by Susanta Kumar Badi, Om Prakash Acharya, Bhargav Appasani, Nicu Bizon

“…An acceptable inter port and inter element isolation below -15.2 dB is achieved by loading a simple magneto-electric structure on the patches in the operating range 4.48 GHz to 5.53 GHz which covers 5G-n79, all channels of IEEE 802.11j and few channels of IEEE 802.11a/h/n/ac/ax/be WLAN bands. …”
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