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Home Networking Requirements & Aspects for Next Generation WLAN

Home Networking Requirements & Aspects for Next Generation WLAN. Karsten Brüninghaus Christoph Euscher Jürgen Kockmann Siemens. Topics. Scenarios Home Networking Application Data Rates Future Home Network Requirements System Design Aspects Proposed Next Steps Conclusion.

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Home Networking Requirements & Aspects for Next Generation WLAN

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  1. Home NetworkingRequirements & Aspects forNext Generation WLAN Karsten Brüninghaus Christoph Euscher Jürgen Kockmann Siemens Brüninghaus / Euscher / Kockmann, Siemens.

  2. Topics • Scenarios • Home Networking • Application Data Rates • Future Home Network Requirements • System Design Aspects • Proposed Next Steps • Conclusion Brüninghaus / Euscher / Kockmann, Siemens.

  3. Home Environment Wireless LAN in business and enterprise environments Nomadic services on hot spots Basic scenarios for future Wireless LANs Brüninghaus / Euscher / Kockmann, Siemens.

  4. Home Environment • Applications inFuture HomeEnvironment • Communication • Information • Entertainment Brüninghaus / Euscher / Kockmann, Siemens.

  5. 105 bit/s 108 bit/s 107 bit/s 106 bit/s Interactive games Application Data Rates: Cluster Brüninghaus / Euscher / Kockmann, Siemens.

  6. Future HE Requirements 1/3 • Low complex devices / Scalability • complexity and consequently the cost of a terminal is adjustable up to a certain degree depending on supported applications • Coexistence with older WLAN and WPAN standards • Future WLAN devices have to be coexistent with legacy wireless products • Power efficiency • long period battery backup Brüninghaus / Euscher / Kockmann, Siemens.

  7. Future HE Requirements 2/3 • Availability of service with required QoS • a service (video, audio, data) is available, when the network provision complies with the user demand • same coverage compared to current wireless home solutions • Ease of Setup – Zero Configuration • No user involvement in network initialization and/or configuration • Roaming between Home - and Cellular Networks • Mobility enhances significantly the use of devices Brüninghaus / Euscher / Kockmann, Siemens.

  8. Future HE Requirements 3/3 • Security • Privacy and integrity has to be given under any circumstances • Authentication to prevent unauthorized access • Handover within Home Network • Redirect traffic from one device to another without loosing connection (e.g. access point and repeater) Brüninghaus / Euscher / Kockmann, Siemens.

  9. System Design Aspects 1/2 • Transmission Technique: OFDM • Robust against multipath • Less complex than broadband single carrier systems • Subcarrier specific adaptive modulation possible • Adaptive configuration to different environments possible • Allows scalable interfaces • OFDM access (reduced # of subcarrier) • Differential modulation (no channel estimation) • Channel Bundling Brüninghaus / Euscher / Kockmann, Siemens.

  10. System Design Aspects 2/2 • OFDM provides flexibility with respect to MAC • Access over time (TDMA) • Access over frequency (FDMA) • Antenna Techniques • Transmit Diversity • Receive Diversity • MIMO Brüninghaus / Euscher / Kockmann, Siemens.

  11. WNG: Proposed Next Steps • Definition of WNG Requirements • Service types that have to be supported • Level of QoS support • Network reference architecture • Statistic of data rates over time – traffic models • Maximum system throughput • Definition of concepts • Physical layer concepts - based on OFDM • MAC layer concepts - new concept? • Network layer – how to integrate new IETF concepts? Brüninghaus / Euscher / Kockmann, Siemens.

  12. WNG: Conclusion To meet the future home networking requirements, current PHY and MAC Layer have to be improved Brüninghaus / Euscher / Kockmann, Siemens.

  13. Contacts christoph.euscher@siemens.com /cc juergen.kockmann@siemens.com Brüninghaus / Euscher / Kockmann, Siemens.

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