Adaptive rate controller for mobile ad hoc networks

Mobile devices in the IEEE 802.11 wireless local area network (WLAN) have the ability to transmit data frames at one of four transmission rates 1Mb/s, 2Mb/s, 5.5Mb/s and 11Mb/s. This is because the commercial WLAN transceivers are equipped with several modulation schemes. According to the characteristics of the modulation scheme, a higher transmission rate will result in a smaller transmission range and longer time consumption on data frame transmission. If the channel environment is relatively clear and the transmission distance is short, one should choose a higher transmission rate for data transmission to maximise channel utilisation. On the contrary, a lower transmission rate should be selected to minimise the frame loss and frame error probabilities if the bit error rate is high. Therefore, the problem of choosing a proper transmission rate to accommodate a varying environment is a new and valuable problem in the wireless LANs. To our knowledge, it is very difficult and impractical to formalise an indoor environment since the channel status is quite unstable and unpredictable. Instead, we propose an adaptive rate controller (ARC), which employs the powerful fuzzy set function, for intelligently selecting the transmission rate for frame transmissions. This fuzzy control function refers the received signal strength indicator (RSSI), the frame error rate (FER) and the medium access control (MAC) delay to make a correct decision. Simulation results demonstrate that the proposed fuzzy controller indeed enhances the network throughput and the access delay.

[1]  Peter Steenkiste,et al.  Measurement and analysis of the error characteristics of an in-building wireless network , 1996, SIGCOMM 1996.

[2]  Branka Vucetic,et al.  An adaptive coding scheme for time-varying channels , 1991, IEEE Trans. Commun..

[3]  Karen W. Halford,et al.  Complementary code keying for RAKE-based indoor wireless communication , 1999, ISCAS'99. Proceedings of the 1999 IEEE International Symposium on Circuits and Systems VLSI (Cat. No.99CH36349).

[4]  Jenhui Chen,et al.  MR2RP: The Multi-Rate and Multi-Range Routing Protocol for IEEE 802.11 Ad Hoc Wireless Networks , 2003, Wirel. Networks.

[5]  Masahiro Morikura,et al.  New high-rate wireless LAN standards , 1999, IEEE Commun. Mag..

[6]  Srikanth V. Krishnamurthy,et al.  Power management for throughput enhancement in wireless ad-hoc networks , 2000, 2000 IEEE International Conference on Communications. ICC 2000. Global Convergence Through Communications. Conference Record.

[7]  Raymond Steele,et al.  Channel-adaptive modulation , 1995 .

[8]  Yang-Han Lee,et al.  PLFC: the packet length fuzzy controller to improve the performance of WLAN under the interference of microwave oven , 2000, Globecom '00 - IEEE. Global Telecommunications Conference. Conference Record (Cat. No.00CH37137).

[9]  L. Kleinrock,et al.  Packet Switching in Radio Channels : Part Il-The Hidden Terminal Problem in Carrier Sense Multiple-Access and the Busy-Tone Solution , 2022 .

[10]  Norihiko Morinaga,et al.  The performance of adaptive modulation with dynamic channel assignment in multimedia traffic , 1998, ICUPC '98. IEEE 1998 International Conference on Universal Personal Communications. Conference Proceedings (Cat. No.98TH8384).

[11]  Mani B. Srivastava,et al.  Adaptive radio for multimedia wireless links , 1999, IEEE J. Sel. Areas Commun..

[12]  Xiaoxin Qiu,et al.  On the performance of adaptive modulation in cellular systems , 1999, IEEE Trans. Commun..

[13]  Mohamed-Slim Alouini,et al.  An adaptive modulation scheme for simultaneous voice and data transmission over fading channels , 1999, IEEE J. Sel. Areas Commun..

[14]  J. Hayes,et al.  Adaptive Feedback Communications , 1968 .

[15]  Jenhui Chen,et al.  MR 2 RP: The Multi-Rate and Multi-Range Routing Protocol for IEEE 802.11 Ad Hoc Wireless Ne , 2003 .

[16]  Ansi Ieee,et al.  Part11 : Wireless LAN Media Access Control (MAC) and Physical Layer (PHY) Specifications , 1999 .

[17]  R. Sivaswamy,et al.  Multiphase Complementary Codes , 1978, IEEE Trans. Inf. Theory.

[18]  Ryuji Kohno,et al.  New concepts and technologies for achieving highly reliable and high-capacity multimedia wireless communications systems , 1997 .

[19]  Marcel J. E. Golay,et al.  Complementary series , 1961, IRE Trans. Inf. Theory.

[20]  C.-C. TSENG,et al.  Complementary sets of sequences , 1972, IEEE Trans. Inf. Theory.

[21]  Ieee . Wg.  Part11 : Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications, Higher-Speed Physical Layer Extension in the 2.4 GHz Band , 1999 .

[22]  M. H. Callendar.  International Mobile Telecommunications-2000 Standards Efforts Of The ITU [Guest Editorial] , 1997 .

[23]  Mani B. Srivastava,et al.  Adaptive frame length control for improving wireless link throughput, range, and energy efficiency , 1998, Proceedings. IEEE INFOCOM '98, the Conference on Computer Communications. Seventeenth Annual Joint Conference of the IEEE Computer and Communications Societies. Gateway to the 21st Century (Cat. No.98.

[24]  Sanjay Gupta,et al.  Performance of asynchronous data transfer methods of IEEE 802.11 MAC protocol , 1996, IEEE Wirel. Commun..

[25]  Lefteri H. Tsoukalas,et al.  Fuzzy and neural approaches in engineering , 1997 .

[26]  Yang-Han Lee,et al.  A wireless LAN measurement method based on RSSI and FER , 1999, Fifth Asia-Pacific Conference on ... and Fourth Optoelectronics and Communications Conference on Communications,.

[27]  Jean-Lien C. Wu,et al.  An adaptive multirate IEEE 802.11 wireless LAN , 2001, Proceedings 15th International Conference on Information Networking.

[28]  Jenhui Chen,et al.  MR2RP: The Multi-Rate and Multi-Range Routing Protocol for IEEE 802.11 Ad Hoc Wireless Networks , 2003, Wirel. Networks.

[29]  W. T. Webb,et al.  Variable rate QAM for mobile radio , 1995, IEEE Trans. Commun..