Performance and capacity of PAM and PPM UWB systems with multiple receive antennas

Zhang, H.; Gulliver, T. Aaron

doi:10.1109/pacrim.2003.1235887

Cited by 4 publications

(5 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The traditional modulation schemes are Time-Hopping Pulse Position Modulation (TH-PPM) and Time-Hopping Pulse Amplitude Modulation (TH-PAM). The performance of PPM and PAM with RAKE reception has been investigated in [1][2] [3].A new modulation scheme called TH-BPPM has been proposed in [4]. Compared with TH-PPM, TH-BPPM provides a lower BER for the same Signal to Noise Ratio (SNR) and the computational complexity of a TH-BPPM receiver is much lower.…”

Section: Introductionmentioning

confidence: 99%

Error Probability Analysis of Time-Hopping Biorthogonal Pulse Position Modulation UWB Systems with a RAKE Receiver over Indoor Multi-Path Fading Channels

Zhang

Shi

et al. 2012

AMR

View full text Add to dashboard Cite

This paper presents the error probability analysis of Time-Hopping Biorthogonal Pulse Position Modulation (TH-BPPM) ultra-wideband (UWB) systems with a RAKE receiver over indoor multi-path fading channels. UWB signals suffer from severe multi-path interference when employed in an indoor fading environment. A RAKE receiver can be used to improve the performance of UWB systems. TH-BPPM has attracted much attention in recent years due to its many advantages, such as low probability of error and low complexity. In this paper, the IEEE 802.15.3a indoor channel model is employed to analyze the performance of TH-BPPM UWB systems with different RAKE receivers. The bit error rate (BER) of ARake, PRake, and SRake TH-BPPM UWB systems is derived. The results indicate that ARake has the best performance, SRake is better than PRake when the number of fingers is same.

show abstract

Section: Introductionmentioning

confidence: 99%

Error Probability Analysis of Time-Hopping Biorthogonal Pulse Position Modulation UWB Systems with a RAKE Receiver over Indoor Multi-Path Fading Channels

Zhang

Shi

et al. 2012

AMR

View full text Add to dashboard Cite

show abstract

“…For the TH-UWB, which is used in this study, the most known modulation schemes are: Pulse Amplitude Modulation (PAM) and Pulse Position Modulation (PPM) [5]. According to [6] the analytical formula for the kth user signal S k (t) using TH-UWB and binary PAM (BPAM) modulation scheme is…”

Section: Introductionmentioning

confidence: 99%

Energy consumption of the IEEE Std 802.15.3 MAC protocol in communication link set-up over UWB radio technology

Goratti

Haapola

Oppermann

2006

Wireless Pers Commun

View full text Add to dashboard Cite

This paper examines the overhead associated with the IEEE Std 802.15.3 medium access control (MAC) protocol when used in conjunction with Ultra Wide-Band (UWB) radio technology. Particular features of the protocol examined include establishing, modifying and terminating data streams. The main focus of the paper is to investigate the overhead introduced in terms of energy consumption to manage the communication links. One of the main UWB technology candidates, Impulse-Radio (IR-UWB), utilizes very short time domain pulses which are low power and difficult to detect. This raises the question of how to design an efficient MAC protocol to harness the potential of the physical layer (PHY). For high data rate WPAN applications, the IEEE Std 802.15.3 protocol has been proposed as a suitable MAC. In the simulations the data source rate and the number of devices in the network are varied and the considerable overhead produced by command frames is observed.

show abstract

“…Given the vector representation of the TH multiple-access BPPAM UWB system in (4.29), the multiple access channel capacity can be given by [80]…”

Section: Multiple Access Capacity For the Proposed Systemmentioning

confidence: 99%

“…If more than one user are active, the multiple access interference (MAI) is the main factor limiting performance. Assuming that user 1 transmits the BPPAM signal S mn , (4.6) can be written as [80] r…”

mentioning

confidence: 99%

“…Channel Capacity of M -ary PAM over AWGN channels With an M -ary PAM over AWGN channels, the received signal is no longer an Mdimensional Gaussian random variable. Let s be the N -ary PAM signal input to the channel; then the output of the AWGN channel is[74] r = s + w (3.23) The PDF of the received vector r conditioned on the transmitted signal s m is given as p(r j s m ) = 1 By substituting (3.24) into (3.20), the channel capacity for an M -ary PAM UWBsystem over an AWGN channel can be written as[80] …”

mentioning

confidence: 99%

See 1 more Smart Citation

Optimizing transmission and reception techniques for ultra wide-band communication systems

Safaryan¹

View full text Add to dashboard Cite

This thesis deals with the optimization and study of transmission and reception techniques for ultra wide-band (UWB) communication systems. More specifically, this thesis introduces a novel technique for high data rate transmission in UWB communications systems considering the limited bandwidth modulated and modified Hermite pulse (LB-MMHP) set of different orders for each user in order to reduce various interferences. The LB-MMHP set is composed of pseudo-orthogonal pulses that have both good auto-correlation characteristics in all orders and low cross-correlation characteristics between different orders. The LB-MMHP pulses maintain their orthogonality without significantly changing their pulse bandwidth for any pulse order used. The Data is transmitted using MN-ary biorthogonal pulse position amplitude modulation (BPPAM) at a rate of many pulses per symbol. Multiple access capability is achieved using spread spectrum time hopping (TH). The Multi-user interference (MUI) and inter symbol interference (ISI) can be reduced effectively in a multi-user system. The performance of the proposed system is evaluated over multipath fading channels. Numerical and simulation results show that the proposed UWB system has significant performance improvements in terms of interference suppression and the advantage of low transceiver complexity. Furthermore, the thesis investigates the use of opportunistic UWB networks which can be efficiently applied to collect data through sensors employed for preserving environment. The high-precision positioning capabilities of UWB technology, based on its operation of ultra short data bearing pulses, can be a reliable solution. Most of the positioning techniques are based on time-of-arrival (ToA) of the first path which can be effectively estimated when the probability of early detection (PoED) is known. In this thesis, the PoED of UWB positioning sensor network subject to narrowband interference (NBI) modeled with Nakagami-m distribution is evaluated. The derived closed-form approximative expression of the PoED has remarkable accuracy in comparison to the existing semi-infinite series expression. The derived closed-form approximative expression is an easily handling finite sum that can be easily evaluated by any standard commercial mathematical software package. However, the tight lower and upper closed form bounds for the PoED are derived. Numerical and simulation results are shown to validate the analytical derivations.

show abstract

Performance and capacity of PAM and PPM UWB systems with multiple receive antennas

Cited by 4 publications

References 12 publications

Error Probability Analysis of Time-Hopping Biorthogonal Pulse Position Modulation UWB Systems with a RAKE Receiver over Indoor Multi-Path Fading Channels

Error Probability Analysis of Time-Hopping Biorthogonal Pulse Position Modulation UWB Systems with a RAKE Receiver over Indoor Multi-Path Fading Channels

Energy consumption of the IEEE Std 802.15.3 MAC protocol in communication link set-up over UWB radio technology

Optimizing transmission and reception techniques for ultra wide-band communication systems

Contact Info

Product

Resources

About