Hoene, C., Carreras I., and Wolisz A., "Voice Over IP: Improving the Quality Over Wireless LAN by Adopting a Booster Mechanism - An Experimental Approach", In P. Mouchtafis, editor, Proc. of SPIE 2001. Home/Search Document Details and Download
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This paper is cited in the following contexts:
Selective Packet Prioritization for Wireless Voice over IP - Sanneck, Le, Haardt, Mohr (Correct)
....voice calls can be accomodated at an access point. However, they clearly also point out the need for error recovery by FEC, ARQ or loss concealment (in fact our approach aims at a good cooperation of the latter two methods) due to the high error rates experienced. Hoene, Carreras and Wolisz ([23]) also present a scheme which builds on the result presented in section 2. In addition to a similar scheme to ours, which allows the retransmission of higher priority packets at the link layer, they also employ redundant transmissions at the application level as well as a combined solution. In ....
C. Hoene, I. Carreras, and A. Wolisz, "Voice over IP: Improving the quality over wireless LAN by adopting a booster mechanism - an experimental approach," in work in progress draft, Berlin, Germany, June 2001.
Selective Packet Prioritization for Wireless Voice over IP - Sanneck, Le, Haardt, Mohr (Correct)
....voice calls can be accomodated at an access point. However, they clearly also point out the need for error recovery by FEC, ARQ or loss concealment (in fact our approach aims at a good cooperation of the latter two methods) due to the high error rates experienced. Hoene, Carreras and Wolisz ([23]) also present a scheme which builds on the result presented in section 2. In addition to a similar scheme to ours, which allows the retransmission of higher priority packets at the link layer, they also employ redundant transmissions at the application level as well as a combined solution. In ....
C. Hoene, I. Carreras, and A. Wolisz, "Voice over IP: Improving the quality over wireless LAN by adopting a booster mechanism - an experimental approach," in work in progress draft, Berlin, Germany, June 2001.
On the Importance of a VolP Packet - Hoene, Rathke, Wolisz (2003) Self-citation (Hoene Wolisz) (Correct)
....a high priority to telephone calls and a lower priority to data transmission. Emerging QoS architectures like DiffServ [2] can treat, forward and drop packets according to their pre defined priority. Novell approaches request different priorities for individual packets within a single flow [3] 4] [5]. This leads to the problem to classify the importance of each packet correctly, so that the overall service quality can be optimized. The human perceived quality of a telephone call should the main optimization criterion, because most calls are between humans. The quality of telephone calls ....
....significantly and are one of the major sources of impairment in a Voice over IP system. Packet losses occur if networking nodes are congested, if (wireless) links have transmission errors, or if packets have to be dropped at the receiver because they arrived too late to be played out on time [5]. The relation between mean packet loss rate and the MOS value is well studied (see section 2.2) It depends on the particular speech coding and decoding algorithm, the concealment and the rate and burstiness of frame losses. The relation between packet loss rate and quality is only valid, if as ....
Hoene, C., Carreras I., and Wolisz A., "Voice Over IP: Improving the Quality Over Wireless LAN by Adopting a Booster Mechanism - An Experimental Approach", In P. Mouchtafis, editor, Proc. of SPIE 2001.
Design and Deployment of Link-Layer Boosters for.. - Hoene, Carreras.. (2002) Self-citation (Hoene Carreras Wolisz) (Correct)
....BASED BOOSTER In the following we will summarize the design, implementation and performance measurements of a speech property based (SPB) booster which improves the voice transmission of G. 729 coded speech over IEEE802.11 wireless LAN in the case of high loss rates (more details can be found in [18]) The basic idea of this booster is based on the observation that not all the packets have the same importance for objective speech quality [2] Considering the speech signal properties and low bit rate codecs features, it is possible to distinguish between important and unimportant packets. In ....
C. Hoene, I. Carreras, and A. Wolisz, "Voice Over IP: Improving the Quality Over Wireless LAN by Adopting a Booster Mechanism - An Experimental Approach", in ITCOM 2001.
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