Huge popularity of mobile devices and Internet open new application field of wireless positioning and navigation systems, and this integration also brings new research issues. Currently the positioning and navigation systems are mostly based on satellite positioning systems, such as GPS. One serious drawback of these satellite based positioning and navigation systems is that they can only operate in outdoor environment. There are several approaches for wireless positioning, e.g. cell ID, DOA (directions of arrivals) or signal strength measurements, but these approaches can not meet requirements of wireless positioning, including latency, availability and accuracy. In this paper, we propose a new approach for Bluetooth positioning, which is based on the time offset acquisition of signals propagating over radio channel, and the forward-backward ranging. Through simulations and experiments, it shows that the new Bluetooth ranging approach could give high ranging accuracy with modest modifications of current Bluetooth technology.
{"title":"Enhancing Accuracy Performance of Bluetooth Positioning","authors":"L. T. Son, P. Orten","doi":"10.1109/WCNC.2007.506","DOIUrl":"https://doi.org/10.1109/WCNC.2007.506","url":null,"abstract":"Huge popularity of mobile devices and Internet open new application field of wireless positioning and navigation systems, and this integration also brings new research issues. Currently the positioning and navigation systems are mostly based on satellite positioning systems, such as GPS. One serious drawback of these satellite based positioning and navigation systems is that they can only operate in outdoor environment. There are several approaches for wireless positioning, e.g. cell ID, DOA (directions of arrivals) or signal strength measurements, but these approaches can not meet requirements of wireless positioning, including latency, availability and accuracy. In this paper, we propose a new approach for Bluetooth positioning, which is based on the time offset acquisition of signals propagating over radio channel, and the forward-backward ranging. Through simulations and experiments, it shows that the new Bluetooth ranging approach could give high ranging accuracy with modest modifications of current Bluetooth technology.","PeriodicalId":292621,"journal":{"name":"2007 IEEE Wireless Communications and Networking Conference","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126559782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mitsuhiro Ogihara, Kenzo Takahashi, S. Taniguchi, Mikio Mori
This paper proposes a novel scheme of hearing aid system which will release quite a lot of old people from light hearing loss or presbycusis, with its easy handling functions and high fidelity output. Hearing aids have been much improved over the past twenty years. However, they still require the troublesome fitting process, above all to old people. Most of hearing aid users point out the noisy performance in their reaction polls. The proposed system electronically connects hearing aids using both air and bone conducted voice signals each other via wireless local access, everywhere. The electronic transfer of voice signals enables to reduce the noise more effectively than the acoustic transfer, especially in noisy environments. It leads to global connections through high speed IP networks. Additionally, the amplifier for hearing loss compensation of the system can be controlled independently at each specified audiogram test frequency and gives less distortion than conventional sub-band flat gain controlled amplifiers. It also makes the hearing quality more natural. Thus, it is expected that isolating old people with hearing loss are able to evenly participate in the future ubiquitous network society as well as general people without hearing troubles. This paper describes the configuration, principles of the proposed scheme. The subjective performance test results show the possibility of outstanding quality improvement.
{"title":"Networked Hearing Aids Using Wireless LAN Technologies","authors":"Mitsuhiro Ogihara, Kenzo Takahashi, S. Taniguchi, Mikio Mori","doi":"10.1109/WCNC.2007.498","DOIUrl":"https://doi.org/10.1109/WCNC.2007.498","url":null,"abstract":"This paper proposes a novel scheme of hearing aid system which will release quite a lot of old people from light hearing loss or presbycusis, with its easy handling functions and high fidelity output. Hearing aids have been much improved over the past twenty years. However, they still require the troublesome fitting process, above all to old people. Most of hearing aid users point out the noisy performance in their reaction polls. The proposed system electronically connects hearing aids using both air and bone conducted voice signals each other via wireless local access, everywhere. The electronic transfer of voice signals enables to reduce the noise more effectively than the acoustic transfer, especially in noisy environments. It leads to global connections through high speed IP networks. Additionally, the amplifier for hearing loss compensation of the system can be controlled independently at each specified audiogram test frequency and gives less distortion than conventional sub-band flat gain controlled amplifiers. It also makes the hearing quality more natural. Thus, it is expected that isolating old people with hearing loss are able to evenly participate in the future ubiquitous network society as well as general people without hearing troubles. This paper describes the configuration, principles of the proposed scheme. The subjective performance test results show the possibility of outstanding quality improvement.","PeriodicalId":292621,"journal":{"name":"2007 IEEE Wireless Communications and Networking Conference","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114516153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
We have proposed a multi-carrier based duplexing, or orthogonal frequency division duplex (OFDD), that realizes the flexible radio resource management. In this paper, we propose a new OFDD system using an analog filter bank. The aim of the analog filter bank is moderating the difficulty of analog circuit designs and solving the signal dynamic range problem in the OFDD. The OFDD system approaches a practical one with the help of the analog filter bank. In this paper, we investigate the sub-carrier configuration for OFDD and evaluate the effect of the analog filter bank. Then, we evaluate the bit error rate performance of the OFDD using the analog filter bank in the presence of carrier frequency offset by computer simulations. From the results, we observe that four null sub-carriers are sufficient for a given analog filter bank to avoid the nonlinear degradation at the analog circuit. We also observe that the OFDD system almost achieves the ideal bit error rate performance when the normalized carrier frequency offset is 10-2.
{"title":"An Orthogonal Frequency Division Duplex (OFDD) System Using an Analog Filter Bank","authors":"R. Kimura, S. Shimamoto","doi":"10.1109/WCNC.2007.425","DOIUrl":"https://doi.org/10.1109/WCNC.2007.425","url":null,"abstract":"We have proposed a multi-carrier based duplexing, or orthogonal frequency division duplex (OFDD), that realizes the flexible radio resource management. In this paper, we propose a new OFDD system using an analog filter bank. The aim of the analog filter bank is moderating the difficulty of analog circuit designs and solving the signal dynamic range problem in the OFDD. The OFDD system approaches a practical one with the help of the analog filter bank. In this paper, we investigate the sub-carrier configuration for OFDD and evaluate the effect of the analog filter bank. Then, we evaluate the bit error rate performance of the OFDD using the analog filter bank in the presence of carrier frequency offset by computer simulations. From the results, we observe that four null sub-carriers are sufficient for a given analog filter bank to avoid the nonlinear degradation at the analog circuit. We also observe that the OFDD system almost achieves the ideal bit error rate performance when the normalized carrier frequency offset is 10-2.","PeriodicalId":292621,"journal":{"name":"2007 IEEE Wireless Communications and Networking Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130108213","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Due to the dielectric constant of traditional FR4 substrate is lower (epsivr=4.2); it is not suitable for the fabrication of small size microwave antennas. In order to reduce the size of the fabricated antennas, the ceramics with higher dielectric constant can be used as the substrates of the designed patch antenna. In this paper, the designed patch antenna is printed on aluminum oxide (Al2O3, epsivr=9.8). Due to larger dielectric constant of Al2O3 ceramic, the size of the designed patch antenna can be reduced to about 25mm times 32mm. It is found that the patch size and the length of transmission line will influence the return loss (S11) and the resonant frequency of the fabricated patch antennas. The optimum bandwidth of the designed antenna can reach 400MHz/16.3%, the resonance frequency is near 2.45GHz, and the S11 is -31dB.
{"title":"Design Small-Size and Wide-Band T-Shaped Patch Antenna on Ceramic Substrate","authors":"Cheng-Fu Yang, Chang-Yi Hsieh, Chien-Min Cheng","doi":"10.1109/WCNC.2007.541","DOIUrl":"https://doi.org/10.1109/WCNC.2007.541","url":null,"abstract":"Due to the dielectric constant of traditional FR4 substrate is lower (epsivr=4.2); it is not suitable for the fabrication of small size microwave antennas. In order to reduce the size of the fabricated antennas, the ceramics with higher dielectric constant can be used as the substrates of the designed patch antenna. In this paper, the designed patch antenna is printed on aluminum oxide (Al2O3, epsivr=9.8). Due to larger dielectric constant of Al2O3 ceramic, the size of the designed patch antenna can be reduced to about 25mm times 32mm. It is found that the patch size and the length of transmission line will influence the return loss (S11) and the resonant frequency of the fabricated patch antennas. The optimum bandwidth of the designed antenna can reach 400MHz/16.3%, the resonance frequency is near 2.45GHz, and the S11 is -31dB.","PeriodicalId":292621,"journal":{"name":"2007 IEEE Wireless Communications and Networking Conference","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122885789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
With the successful development of IEEE 802.11 based wireless LAN(WLAN), applications with QoS requirements are asked to be provided in WLANs. Because of their delay restrictions, realtime applications should work under unsaturated conditions. In this paper, firstly, traffic models for different kinds of applications are proposed to convert the unsaturated system into an equivalent saturated system and calculated out the queueing delay in the sender buffer; then, a new analysis model is presented to analyze the backoff delay and packet loss rate of all kinds of applications under the IEEE 802.11e enhanced distributed channel access (EDCA), this model well embodies the function of the arbitration inter frame space(AIFS) and other EDCA parameters; finally, access delay can be get from the backoff delay and queueing delay. Practical scenarios of voice over IP(VoIP) and data combined system are simulated. Simulation results show the accuracy and efficiency of our model under unsaturated conditions.
随着基于IEEE 802.11的无线局域网(WLAN)的成功发展，要求在WLAN中提供具有QoS要求的应用。由于它们的延迟限制，实时应用应该在不饱和条件下工作。本文首先提出了不同类型应用的流量模型，将不饱和系统转化为等效的饱和系统，并计算出发送端缓冲区的排队延迟;然后，提出了一种新的分析模型来分析IEEE 802.11e增强分布式信道接入(EDCA)下各种应用的回退时延和丢包率，该模型很好地体现了仲裁帧间空间(AIFS)和其他EDCA参数的作用;最后，从回退延迟和排队延迟中得到访问延迟。对IP语音(voice over IP, VoIP)和数据组合系统的实际场景进行了仿真。仿真结果表明了该模型在非饱和条件下的准确性和有效性。
{"title":"Delay Analysis of IEEE 802.11e EDCA Under Unsaturated Conditions","authors":"Jing Liu, Z. Niu","doi":"10.1109/WCNC.2007.84","DOIUrl":"https://doi.org/10.1109/WCNC.2007.84","url":null,"abstract":"With the successful development of IEEE 802.11 based wireless LAN(WLAN), applications with QoS requirements are asked to be provided in WLANs. Because of their delay restrictions, realtime applications should work under unsaturated conditions. In this paper, firstly, traffic models for different kinds of applications are proposed to convert the unsaturated system into an equivalent saturated system and calculated out the queueing delay in the sender buffer; then, a new analysis model is presented to analyze the backoff delay and packet loss rate of all kinds of applications under the IEEE 802.11e enhanced distributed channel access (EDCA), this model well embodies the function of the arbitration inter frame space(AIFS) and other EDCA parameters; finally, access delay can be get from the backoff delay and queueing delay. Practical scenarios of voice over IP(VoIP) and data combined system are simulated. Simulation results show the accuracy and efficiency of our model under unsaturated conditions.","PeriodicalId":292621,"journal":{"name":"2007 IEEE Wireless Communications and Networking Conference","volume":"22 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115169157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Personal communications are facing many challenges created by mobility and convergence in today's communication networks. People often find themselves interacting with their devices in attention-constrained environments and deal with a bewildering variety of communication services, devices and access technologies. Although context awareness seems to be the best answer to these challenges, most of the already developed context-aware solutions did not make their way to the consumer market because they focused on context provisioning (acquisition and modeling) and fell short from proposing concrete architectures for context-based adaptation of user communications. In this paper, we discuss the basic requirements for communication adaptation and we define the main characteristics of a communication session. Then, we propose INCA (intelligent network-based communication assistant) by describing its architecture and its behavior according to a previously defined reference scenario.
在当今的通信网络中，由于移动性和融合性，个人通信面临着许多挑战。人们经常发现自己在注意力受限的环境中与设备交互，并处理各种令人眼花缭乱的通信服务、设备和接入技术。虽然上下文感知似乎是应对这些挑战的最佳答案，但大多数已经开发的上下文感知解决方案并没有进入消费者市场，因为它们专注于上下文供应(获取和建模)，并且没有提出基于上下文的用户通信适应的具体架构。本文讨论了通信适应的基本要求，并定义了通信会话的主要特征。然后，根据先前定义的参考场景，通过描述其架构和行为，提出了基于网络的智能通信助手INCA (intelligent network-based communication assistant)。
{"title":"An Intelligent Assistant for Context-Aware Adaptation of Personal Communications","authors":"Bassam El Saghir, N. Crespi","doi":"10.1109/WCNC.2007.472","DOIUrl":"https://doi.org/10.1109/WCNC.2007.472","url":null,"abstract":"Personal communications are facing many challenges created by mobility and convergence in today's communication networks. People often find themselves interacting with their devices in attention-constrained environments and deal with a bewildering variety of communication services, devices and access technologies. Although context awareness seems to be the best answer to these challenges, most of the already developed context-aware solutions did not make their way to the consumer market because they focused on context provisioning (acquisition and modeling) and fell short from proposing concrete architectures for context-based adaptation of user communications. In this paper, we discuss the basic requirements for communication adaptation and we define the main characteristics of a communication session. Then, we propose INCA (intelligent network-based communication assistant) by describing its architecture and its behavior according to a previously defined reference scenario.","PeriodicalId":292621,"journal":{"name":"2007 IEEE Wireless Communications and Networking Conference","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115213410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Despite the large amount of research in ad hoc networks, there are still several limitations on the scalability and performance of routing protocols, which require a more fundamental understanding of some of the basic mechanisms. In this paper, we focus on one of these mechanisms, which is route discovery, and analyze its extent and overhead in discovering routes to nodes in the network. Gwalani et al. (2003) has augmented route discovery in AODV with a mechanism called path accumulation, that allows additional routes to be propagated through the network. We provide detailed analysis and simulations for the potential benefits of path accumulation and apply it on one of the prominent ad hoc routing protocols, AODV. The results show that path accumulation can improve the performance of AODV and reduce its overhead significantly.
{"title":"Analyzing Path Accumulation for Route Discovery in Ad Hoc Networks","authors":"K. Seada, C. Westphal, C. Perkins","doi":"10.1109/WCNC.2007.798","DOIUrl":"https://doi.org/10.1109/WCNC.2007.798","url":null,"abstract":"Despite the large amount of research in ad hoc networks, there are still several limitations on the scalability and performance of routing protocols, which require a more fundamental understanding of some of the basic mechanisms. In this paper, we focus on one of these mechanisms, which is route discovery, and analyze its extent and overhead in discovering routes to nodes in the network. Gwalani et al. (2003) has augmented route discovery in AODV with a mechanism called path accumulation, that allows additional routes to be propagated through the network. We provide detailed analysis and simulations for the potential benefits of path accumulation and apply it on one of the prominent ad hoc routing protocols, AODV. The results show that path accumulation can improve the performance of AODV and reduce its overhead significantly.","PeriodicalId":292621,"journal":{"name":"2007 IEEE Wireless Communications and Networking Conference","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115610545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
WLAN-based mesh networking is being developed with the benefit of easy deployment and easy configuration to overcome the limitation of a single-hop communication in terms of coverage, cost, capacity, scalability, etc. Wireless mesh networks(WMN)' distributed and dynamic characteristic needs an distributed authentication scheme which supports the mobility of the mesh points(MP). In this paper, we propose an efficient distributed authentication method which significantly eases the management burden, reduces the storage space on mesh points, and support the mobility of the MP.
{"title":"Efficient Distributed Authentication Method with Local Proxy for Wireless Mesh Networks","authors":"Insun Lee, Jihoon Lee, Daeyoung Kim","doi":"10.1109/WCNC.2007.651","DOIUrl":"https://doi.org/10.1109/WCNC.2007.651","url":null,"abstract":"WLAN-based mesh networking is being developed with the benefit of easy deployment and easy configuration to overcome the limitation of a single-hop communication in terms of coverage, cost, capacity, scalability, etc. Wireless mesh networks(WMN)' distributed and dynamic characteristic needs an distributed authentication scheme which supports the mobility of the mesh points(MP). In this paper, we propose an efficient distributed authentication method which significantly eases the management burden, reduces the storage space on mesh points, and support the mobility of the MP.","PeriodicalId":292621,"journal":{"name":"2007 IEEE Wireless Communications and Networking Conference","volume":"37 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115642542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Providing end-to-end reliability for data transmission is a major challenge for energy-constrained and bandwidth-limited wireless sensor networks. To meet this challenge, attempts have been made using a multi-path transmission mechanism that encodes an information bitstream using forward error correction (FEC), and sends the obtained packets over a number of paths to the destination. Algorithms that, given the paths statistics (e.g., failure probability and energy cost of data transmission over the paths), find the number of channel packets and their transmission paths that optimize the reliability-energy cost tradeoff have been proposed. Once a transmission strategy is obtained, all packets are transmitted regardless of the actual state of the wireless links, which may result in energy and bandwidth losses due to unnecessary transmissions. This can be more severe when arbitrary transmission strategies have to be used due, for example, to the unavailability of paths statistics at the source node, which is the case in many practical applications. In this paper, we propose a hybrid FEC-feedback mechanism. The feedback scheme is used to send ACK packets from the sink to the source node when the information bitstream is actually recovered. We then derive a measure of the expected energy cost of data transmission for the hybrid mechanism. Simulation results show that, on average, the hybrid mechanism consumes up to about 44% less energy than the FEC-based mechanism for the transmission of a bitstream with the same reliability constraint. The energy savings of the hybrid mechanism are even higher when arbitrary transmission strategies have to be used.
{"title":"Adaptive and Reliable Multi-Path Transmission in Wireless Sensor Networks using Forward Error Correction and Feedback","authors":"Y. Charfi, N. Wakamiya, M. Murata","doi":"10.1109/WCNC.2007.674","DOIUrl":"https://doi.org/10.1109/WCNC.2007.674","url":null,"abstract":"Providing end-to-end reliability for data transmission is a major challenge for energy-constrained and bandwidth-limited wireless sensor networks. To meet this challenge, attempts have been made using a multi-path transmission mechanism that encodes an information bitstream using forward error correction (FEC), and sends the obtained packets over a number of paths to the destination. Algorithms that, given the paths statistics (e.g., failure probability and energy cost of data transmission over the paths), find the number of channel packets and their transmission paths that optimize the reliability-energy cost tradeoff have been proposed. Once a transmission strategy is obtained, all packets are transmitted regardless of the actual state of the wireless links, which may result in energy and bandwidth losses due to unnecessary transmissions. This can be more severe when arbitrary transmission strategies have to be used due, for example, to the unavailability of paths statistics at the source node, which is the case in many practical applications. In this paper, we propose a hybrid FEC-feedback mechanism. The feedback scheme is used to send ACK packets from the sink to the source node when the information bitstream is actually recovered. We then derive a measure of the expected energy cost of data transmission for the hybrid mechanism. Simulation results show that, on average, the hybrid mechanism consumes up to about 44% less energy than the FEC-based mechanism for the transmission of a bitstream with the same reliability constraint. The energy savings of the hybrid mechanism are even higher when arbitrary transmission strategies have to be used.","PeriodicalId":292621,"journal":{"name":"2007 IEEE Wireless Communications and Networking Conference","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123155285","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The amount of fading (AF) is a simple measure for the performance of a diversity system. This paper provides approximations and bounds for AF as well as the methods to derive the exact AF calculations for transmit antenna selection (TAS) on Rayleigh fading channels. We also derive a simple approximate formula for the relationship between the AF and the coding gain in a TAS system. Simulation results are provided to verify the results.
{"title":"Amount of Fading Analysis for Transmit Antenna Selection in MIMO Systems","authors":"Xinwei Deng, Wei Zhang, C. Tellambura","doi":"10.1109/WCNC.2007.220","DOIUrl":"https://doi.org/10.1109/WCNC.2007.220","url":null,"abstract":"The amount of fading (AF) is a simple measure for the performance of a diversity system. This paper provides approximations and bounds for AF as well as the methods to derive the exact AF calculations for transmit antenna selection (TAS) on Rayleigh fading channels. We also derive a simple approximate formula for the relationship between the AF and the coding gain in a TAS system. Simulation results are provided to verify the results.","PeriodicalId":292621,"journal":{"name":"2007 IEEE Wireless Communications and Networking Conference","volume":"227 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121123215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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